Running & Cycling · Gift guide
Best gifts for runners: headphones sorted by the runner you're buying for
You're not the runner; they are. So this list is written for you: what each pair is for, who it suits, what to check about their ears and their habits, and what they'd need to add. Every pick is from our own rankings.
By Mike M.Updated Spec-checked, not worn by us
#adReader-supported: we may earn a commission if you buy through our links, at no extra cost to you. It never decides a ranking. How we rank · Disclosure
Quick picks
The rankings at a glance
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  Shokz OpenRun Pro 2 The safe gift: the neckband most runners already want. Sized Standard or Mini; ask, or check their hat size. | For the road runnerBone conduction (neckband) | 8.5 /10 | Check price · Amazon |
| 2 |  Shokz OpenFit 2 An ear-hook with fuller sound and a case. If they've said bone conduction sounds tinny, this is the one. | For the runner who hates neckbandsOpen-ear hook | 8.3 /10 | Check price · Amazon |
| 3 | Suunto Wing 2 LED lights that pulse with cadence. If they run in the dark, this is the gift nobody else will think of. | For the dawn or dusk runnerBone conduction (neckband) | 8.3 /10 | Check price · Amazon |
| 4 | Shokz OpenRun Air 2 IP67 and washable under the tap. If they've killed earbuds with sweat, buy this one. | For the heavy sweaterBone conduction (neckband) | 8.7 /10 | Check price · Amazon |
| 5 |  Shokz OpenDots 2 A clip that doesn't touch the top of the ear. IP57, so it survives their sweat too. | For the runner in glassesOpen-ear clip-on | 8.6 /10 | Check price · Amazon |
| 6 | Shokz OpenSwim Pro The only Shokz rated for the pool, with 32 GB of music onboard. A triathlete's gift. | For the runner who also swimsBone conduction (neckband) | 8.5 /10 | Check price · Amazon |
| 7 | Bose Ultra Open Earbuds (2nd Gen) The best-sounding open design. IPX4, so for moderate sweaters, not the hot-yoga type. | For the runner who cares about soundOpen-ear clip-on | 7.5 /10 | Check price · Amazon |
| 8 |  Beats Powerbeats Pro 2 Sealed, ANC, heart rate, Apple-friendly. Best if most of their miles are on a treadmill. | For the gym-and-run runnerIn-ear + ear hook | 8.1 /10 | Check price · Amazon |
| 9 | Shokz OpenFit Air 2 The lightest Shokz hook, IP55, with a case. The lower-risk hook gift. | For small ears or a first open-earOpen-ear hook | 8.4 /10 | Check price · Amazon |
#ad · Prices are set by Amazon and change often, so we don't print them. Scores are ours, built from published specs and cited independent reviews, not our own wear tests. Photos are illustrative stock. Tap a row for the full write-up.
Three things to check before you buy
- Do they already own Shokz? Many runners do. If so, look at the neckband: if it says OpenRun (no Pro), the Pro 2 is a real upgrade; if it says OpenRun Pro 2, buy from a different row.
- Glasses, and head size. Glasses push you toward a clip-on or a neckband. Shokz neckbands come in Standard and Mini (Mini for heads under 9.25 in / 23.5 cm around); a hat size of S or a small frame usually means Mini.
- Where they run. Roads mean open-ear (all the picks but one). Treadmills mean the Beats is fine. Dark roads mean the Suunto. Pools mean the OpenSwim Pro.
By the runner you're buying for
- “They run every morning.” OpenRun Pro 2. Twelve hours, USB-C, and it can't fall off.
- “They run before work, in the dark.” Suunto Wing 2. Lights on the back of the head, 36 hours with the power bank.
- “They've killed three pairs of earbuds.” OpenRun Air 2 (IP67) or OpenDots 2 (IP57). Both survive sweat and a rinse.
- “They wear glasses.” OpenDots 2 or Bose Ultra Open 2nd Gen. Nothing over the ear.
- “They also swim / they do triathlons.” OpenSwim Pro. The pool one.
- “They mostly run on a treadmill and lift.” Powerbeats Pro 2. Sealed, ANC, heart rate.
- “They said bone conduction sounds thin.” OpenFit 2. An ear-hook with dual drivers.
- “I don't know their ears.” OpenFit Air 2. The lightest, lowest-risk hook.
The table
| Evidence | Shokz OpenRun Pro 2 | Shokz OpenFit 2 | Suunto Wing 2 | Shokz OpenRun Air 2 | Shokz OpenDots 2 |
|---|---|---|---|---|---|
| Fit system | Bone conduction (neckband) | Open-ear hook | Bone conduction (neckband) | Bone conduction (neckband) | Open-ear clip-on |
| Water & sweat rating | IP55 (dust, sweat and water resistant) | Earbuds IP55; charging case not waterproof | IP66 | IP67 (dust-tight, temporary immersion); Shokz: not for swimming | Earbuds IP57; charging case IP54 |
| Battery | 12 hours listening | 11 hours; 48 hours with case | 12 hours; up to 24 more from the included power bank | 10 hours listening | 10 hours; 40 hours with case |
| Sizes | Standard (over 9.25 in head circumference) and Mini | — | — | — | — |
| Charging | USB-C, 1 hour to full | USB-C case; earbuds 1 hour, case 100 min | Headphones 1 h or less; power bank 1.5 h or less | USB-C, 1 hour to full | Case: wireless and USB-C; earbuds 1 hour |
| Score | 8.5/10 | 8.3/10 | 8.3/10 | 8.7/10 | 8.6/10 |
| Evidence | Shokz OpenSwim Pro | Bose Ultra Open Earbuds (2nd Gen) | Beats Powerbeats Pro 2 | Shokz OpenFit Air 2 |
|---|---|---|---|---|
| Fit system | Bone conduction (neckband) | Open-ear clip-on | In-ear + ear hook | Open-ear hook |
| Water & sweat rating | IP68, swimproof to 2 m | IPX4 | IPX4 | Earbuds IP55; charging case IP54 |
| Battery | 9 hours Bluetooth / 6 hours MP3 | 9 hours; 5 hours with Immersive Audio or Auto Volume on; 4 with both; up to 19.5 more in the case | Up to 10 hours per bud; up to 45 hours with case | 8 hours; 36 hours with case |
| Storage | 32 GB MP3 storage | — | — | — |
| Charging | Magnetic induction, 1.5 hours to full | 1 hour; wireless charging case | USB-C; Qi wireless charging | USB-C; earbuds 60 min, case 100 min |
| Score | 8.5/10 | 7.5/10 | 8.1/10 | 8.4/10 |
In detail
The picks, in full
Rank 1
Stock photoFor the road runner
Shokz OpenRun Pro 2
The safe gift: the neckband most runners already want. Sized Standard or Mini; ask, or check their hat size.
Spec sheetSpec-checked · not worn by us
| Fit system | Bone conduction (neckband). Ear canal stays open: you hear the room and traffic. |
|---|---|
| Water & sweat rating | IP55 (dust, sweat and water resistant) |
| Weight | 30.3 g standard / 30 g mini |
| Battery | 12 hours listening |
| Quick charge | 5 min = 2.5 hours |
| Charging | USB-C, 1 hour to full |
| Bluetooth | 5.3, 33 ft range |
| Multipoint | Yes |
| Microphones | Dual AI noise-canceling, wind-resistant to 25 km/h |
| Controls | Physical buttons |
| Driver / tech | 10th-gen bone conduction (DualPitch: bone + air conduction unit) |
| Sizes | Standard (over 9.25 in head circumference) and Mini |
| Launched | August 2024 |
How the 8.5 score breaks down
- Fit security (25%)
- 10
- Sweat & water resistance (20%)
- 8
- Awareness (open canal) (15%)
- 10
- Sound & leakage (15%)
- 6
- Calls & wind (10%)
- 8
- Battery & charging (10%)
- 9
- Value (5%)
- 6
What the spec sheet supports
- Titanium neckband plus ear hooks: nothing to fall out of an ear canal
- 12 hours per charge and a real quick charge, on USB-C instead of a proprietary cable
- DualPitch adds an air-conduction driver, so bass exists where older bone conduction sets had none
- Wind-resistant dual mics rated to 25 km/h for calls on the move
Where it falls short
- IP55, not IP67 like the cheaper OpenRun and OpenRun Air 2: fine for sweat, not for rinsing under a tap
- Bone conduction still leaks at high volume in a quiet room
- The most expensive of the three OpenRun models
Skip this if…
…you want to rinse the headphones under a tap after a soaked run (get the IP67 OpenRun Air 2) or you train mostly indoors where a sealed earbud's bass would matter more than an open ear.
#ad · Price set by Amazon · Disclosure for the link to Shokz OpenRun Pro 2
Rank 2
Stock photoFor the runner who hates neckbands
Shokz OpenFit 2
An ear-hook with fuller sound and a case. If they've said bone conduction sounds tinny, this is the one.
Spec sheetSpec-checked · not worn by us
| Fit system | Open-ear hook. Ear canal stays open: you hear the room and traffic. |
|---|---|
| Water & sweat rating | Earbuds IP55; charging case not waterproof |
| Weight | 9.4 g per earbud; case 53 g |
| Battery | 11 hours; 48 hours with case |
| Quick charge | 10 min = 2 hours |
| Charging | USB-C case; earbuds 1 hour, case 100 min |
| Bluetooth | 5.4 |
| Multipoint | Yes |
| Microphones | Dual AI noise-canceling |
| Controls | Physical buttons and touch controls |
| Driver / tech | DualBoost dual drivers + DirectPitch |
| Launched | January 2025 |
How the 8.3 score breaks down
- Fit security (25%)
- 9
- Sweat & water resistance (20%)
- 8
- Awareness (open canal) (15%)
- 9
- Sound & leakage (15%)
- 8
- Calls & wind (10%)
- 7
- Battery & charging (10%)
- 9
- Value (5%)
- 6
What the spec sheet supports
- 11 hours per charge is the longest of the mainstream ear-hooks
- A real button, so a sweaty finger doesn't misfire a touch control
- Dual drivers give it more low end than single-driver open-ears
- IP55 earbuds handle sweat and rain
Where it falls short
- The case is not water resistant at all; don't drop it in a wet gym bag
- 9.4 g per side is heavier than the OpenFit Air 2 (7.2 g) or Shokz's clip-ons
- Open-ear leakage: people next to you on a quiet bus will hear it
Skip this if…
…you have small ears or glasses that fight a thick hook; the 7.2 g OpenFit Air 2 or a clip-on sits lighter.
#ad · Price set by Amazon · Disclosure for the link to Shokz OpenFit 2
Rank 3
Stock photoFor the dawn or dusk runner
Suunto Wing 2
LED lights that pulse with cadence. If they run in the dark, this is the gift nobody else will think of.
Spec sheetSpec-checked · not worn by us
| Fit system | Bone conduction (neckband). Ear canal stays open: you hear the room and traffic. |
|---|---|
| Water & sweat rating | IP66 |
| Weight | 35 g / 1.23 oz |
| Battery | 12 hours; up to 24 more from the included power bank |
| Charging | Headphones 1 h or less; power bank 1.5 h or less |
| Bluetooth | 5.3, over 10 m; SBC codec |
| Wind handling | Anti-wind noise to 30 km/h |
| Controls | Head-movement control plus buttons |
| Extras | Reactive LED lights; titanium build; -20 to 60 C operating range; Suunto app |
How the 8.3 score breaks down
- Fit security (25%)
- 9
- Sweat & water resistance (20%)
- 9
- Awareness (open canal) (15%)
- 10
- Sound & leakage (15%)
- 5
- Calls & wind (10%)
- 8
- Battery & charging (10%)
- 9
- Value (5%)
- 6
What the spec sheet supports
- LED lights that pulse with cadence, a genuine visibility feature for road cyclists
- Head-movement controls: nod to answer, shake to decline
- 36 hours total with the power bank clipped on
Where it falls short
- 35 g, heavier than every Shokz neckband
- IP66, not IP67: heavy spray yes, immersion no
- SBC only; SoundGuys noted excessive vibration at high volume on the original Wing
Skip this if…
…you don't ride or run in the dark; the lights and head gestures are the reason to pay for this over an OpenRun.
#ad · Price set by Amazon · Disclosure for the link to Suunto Wing 2
Rank 4
Stock photoFor the heavy sweater
Shokz OpenRun Air 2
IP67 and washable under the tap. If they've killed earbuds with sweat, buy this one.
Spec sheetSpec-checked · not worn by us
| Fit system | Bone conduction (neckband). Ear canal stays open: you hear the room and traffic. |
|---|---|
| Water & sweat rating | IP67 (dust-tight, temporary immersion); Shokz: not for swimming |
| Weight | 26.4 g standard / 25.9 g mini |
| Battery | 10 hours listening |
| Quick charge | 5 min = 2 hours |
| Charging | USB-C, 1 hour to full |
| Bluetooth | 6.0 |
| Multipoint | Yes |
| Microphones | Dual AI noise-canceling, wind-resistant |
| Controls | Physical buttons |
| Driver / tech | 8.5-gen bone conduction (PremiumPitch 3.0) |
| Launched | August 2026 |
How the 8.7 score breaks down
- Fit security (25%)
- 10
- Sweat & water resistance (20%)
- 10
- Awareness (open canal) (15%)
- 10
- Sound & leakage (15%)
- 5
- Calls & wind (10%)
- 8
- Battery & charging (10%)
- 8
- Value (5%)
- 7
What the spec sheet supports
- IP67 means sweat, rain and a rinse under the tap are all inside the rating
- Lightest current Shokz neckband; Shokz says the frame is 9% smaller than the OpenRun's
- USB-C charging and a 5-minute quick charge
- Bluetooth 6.0 with multipoint
Where it falls short
- No DualPitch air-conduction unit, so bass is thinner than the Pro 2
- Two hours less battery than the Pro 2
- Bone conduction leakage and cheekbone buzz at high volume, like every neckband here
Skip this if…
…sound quality is the reason you'd spend more (the Pro 2's DualPitch is audibly fuller) or you need the Pro 2's 12-hour battery for ultra-distance days.
#ad · Price set by Amazon · Disclosure for the link to Shokz OpenRun Air 2
Rank 5
Stock photoFor the runner in glasses
Shokz OpenDots 2
A clip that doesn't touch the top of the ear. IP57, so it survives their sweat too.
Spec sheetSpec-checked · not worn by us
| Fit system | Open-ear clip-on. Ear canal stays open: you hear the room and traffic. |
|---|---|
| Water & sweat rating | Earbuds IP57; charging case IP54 |
| Weight | 6.4 g per earbud; case 38.8 g |
| Battery | 10 hours; 40 hours with case |
| Quick charge | 5 min = 2 hours |
| Charging | Case: wireless and USB-C; earbuds 1 hour |
| Bluetooth | 6.1 |
| Multipoint | Yes |
| Microphones | Triple AI noise-canceling: two air-conduction mics plus one bone-conduction mic |
| Controls | Touch controls (upgraded) |
| Driver / tech | Bassphere 2.0 + Dolby Audio + DirectPitch + MirrorPitch |
| Launched | June 2026 |
How the 8.6 score breaks down
- Fit security (25%)
- 8
- Sweat & water resistance (20%)
- 10
- Awareness (open canal) (15%)
- 9
- Sound & leakage (15%)
- 8
- Calls & wind (10%)
- 9
- Battery & charging (10%)
- 9
- Value (5%)
- 5
What the spec sheet supports
- IP57 on the buds: immersion-rated, which no Bose clip-on is
- 10 hours per charge and a 5-minute charge worth 2
- Bone-conduction mic picks up your voice through the jaw on windy days
- Even the case is IP54
Where it falls short
- Touch controls rather than buttons
- Clip-ons sit lighter than hooks but can shift on heavy impact; check the fit on the first sprint
Skip this if…
…you want buttons; the Bose cuffs have them, or go to an ear-hook.
#ad · Price set by Amazon · Disclosure for the link to Shokz OpenDots 2
Rank 6
Stock photoFor the runner who also swims
Shokz OpenSwim Pro
The only Shokz rated for the pool, with 32 GB of music onboard. A triathlete's gift.
Spec sheetSpec-checked · not worn by us
| Fit system | Bone conduction (neckband). Ear canal stays open: you hear the room and traffic. |
|---|---|
| Water & sweat rating | IP68, swimproof to 2 m |
| Weight | 27.3 g |
| Battery | 9 hours Bluetooth / 6 hours MP3 |
| Quick charge | 10 min = 3 hours |
| Charging | Magnetic induction, 1.5 hours to full |
| Bluetooth | 5.4 |
| Microphones | Dual AI noise-canceling |
| Controls | Physical buttons |
| Driver / tech | 8th-gen bone conduction (PremiumPitch 2.0+) |
| Storage | 32 GB MP3 storage |
| Launched | June 2024 |
How the 8.5 score breaks down
- Fit security (25%)
- 10
- Sweat & water resistance (20%)
- 10
- Awareness (open canal) (15%)
- 10
- Sound & leakage (15%)
- 5
- Calls & wind (10%)
- 7
- Battery & charging (10%)
- 8
- Value (5%)
- 5
What the spec sheet supports
- IP68 with a stated 2 m swim depth, the only current Shokz rated for the pool
- 32 GB MP3 mode because Bluetooth does not travel through water
- Still a full Bluetooth 5.4 headset with mics for running days
Where it falls short
- Magnetic charging cable, not USB-C
- Bone conduction bass is the older 8th-gen type; no DualPitch
- You pay a premium for waterproofing you may only use once a week
Skip this if…
…you never swim; the OpenRun Pro 2 sounds better and the OpenRun Air 2 is just as sweatproof for less.
#ad · Price set by Amazon · Disclosure for the link to Shokz OpenSwim Pro
Rank 7
Stock photoFor the runner who cares about sound
Bose Ultra Open Earbuds (2nd Gen)
The best-sounding open design. IPX4, so for moderate sweaters, not the hot-yoga type.
Spec sheetSpec-checked · not worn by us
| Fit system | Open-ear clip-on. Ear canal stays open: you hear the room and traffic. |
|---|---|
| Water & sweat rating | IPX4 |
| Weight | 0.013 lb per earbud (about 5.9 g) |
| Battery | 9 hours; 5 hours with Immersive Audio or Auto Volume on; 4 with both; up to 19.5 more in the case |
| Quick charge | 10 min = up to 2 hours |
| Charging | 1 hour; wireless charging case |
| Bluetooth | 5.4 |
| Multipoint | Yes |
| Microphones | 2 microphones with SpeechClarity |
| Controls | Button on each barrel |
How the 7.5 score breaks down
- Fit security (25%)
- 8
- Sweat & water resistance (20%)
- 5
- Awareness (open canal) (15%)
- 9
- Sound & leakage (15%)
- 9
- Calls & wind (10%)
- 8
- Battery & charging (10%)
- 8
- Value (5%)
- 3
What the spec sheet supports
- 9 hours per charge, up from 7
- SpeechClarity mics and Bluetooth 5.4
- Wireless charging and a metallic finish
Where it falls short
- IPX4 again
- Both spatial features on together drops battery to 4 hours
- The most expensive clip-on here
Skip this if…
…the first-gen is on sale; the fit and the IPX4 rating are identical, and 2 more hours is the main gain.
#ad · Price set by Amazon · Disclosure for the link to Bose Ultra Open Earbuds (2nd Gen)
Rank 8
Stock photoFor the gym-and-run runner
Beats Powerbeats Pro 2
Sealed, ANC, heart rate, Apple-friendly. Best if most of their miles are on a treadmill.
Spec sheetSpec-checked · not worn by us
| Fit system | In-ear + ear hook. Sealed ear canal: isolation, no awareness. |
|---|---|
| Water & sweat rating | IPX4 |
| Weight | 8.7 g per earbud; case 69 g |
| Battery | Up to 10 hours per bud; up to 45 hours with case |
| Quick charge | Fast Fuel: 5 min = up to 1.5 hours |
| Charging | USB-C; Qi wireless charging |
| Bluetooth | Class 1 Bluetooth |
| Controls | Multi-function button and volume rocker on each side |
| Noise control | Active Noise Canceling and Transparency mode |
| Extras | Heart-rate monitoring sensors; nickel-titanium alloy earhooks; Apple H2 chip; Voice Isolation for calls |
How the 8.1 score breaks down
- Fit security (25%)
- 10
- Sweat & water resistance (20%)
- 5
- Noise control & transparency (15%)
- 9
- Sound quality (15%)
- 9
- Calls & wind (10%)
- 8
- Battery & charging (10%)
- 9
- Value (5%)
- 4
What the spec sheet supports
- Reinforced hooks plus a sealed tip: the most locked-in fit on this site
- Physical buttons and a volume rocker on each bud
- Heart-rate data to fitness apps without a chest strap
- 10 hours per bud, 45 with the case
Where it falls short
- IPX4 is a rain-and-light-sweat rating; heavy sweaters have soaked IPX4 buds
- Sealed ear: you won't hear the car behind you
- Priced at the top of the workout category
Skip this if…
…you sweat through everything; an IP67 or IP68 sealed bud like the Soundcore Sport X20 is rated for it and this isn't.
#ad · Price set by Amazon · Disclosure for the link to Beats Powerbeats Pro 2
Rank 9
Stock photoFor small ears or a first open-ear
Shokz OpenFit Air 2
The lightest Shokz hook, IP55, with a case. The lower-risk hook gift.
Spec sheetSpec-checked · not worn by us
| Fit system | Open-ear hook. Ear canal stays open: you hear the room and traffic. |
|---|---|
| Water & sweat rating | Earbuds IP55; charging case IP54 |
| Weight | 7.2 g per earbud; case 46.4 g |
| Battery | 8 hours; 36 hours with case |
| Quick charge | 10 min = 3 hours |
| Charging | USB-C; earbuds 60 min, case 100 min |
| Bluetooth | 6.1 |
| Multipoint | Yes |
| Microphones | Dual AI noise-canceling |
| Controls | Pressure-sensitive buttons |
| Driver / tech | Bassphere + OpenBass 2.0 + DirectPitch |
| Launched | August 2026 |
How the 8.4 score breaks down
- Fit security (25%)
- 9
- Sweat & water resistance (20%)
- 9
- Awareness (open canal) (15%)
- 9
- Sound & leakage (15%)
- 7
- Calls & wind (10%)
- 7
- Battery & charging (10%)
- 8
- Value (5%)
- 8
What the spec sheet supports
- Lightest Shokz ear-hook at 7.2 g
- The only OpenFit whose case carries a rating (IP54)
- Pressure buttons, not touch, so sweat doesn't trigger them
Where it falls short
- 8 hours versus 11 on the OpenFit 2
- Single-driver sound with less bass than DualBoost
Skip this if…
…battery is your bottleneck; the OpenFit 2 lasts three hours longer per charge.
#ad · Price set by Amazon · Disclosure for the link to Shokz OpenFit Air 2
Gifter's guide
Open-ear is the low-risk category
You don't need to know their ear canal size. Neckbands fit by head size; hooks and clips fit almost everyone. Sealed earbuds (the Beats) depend on tip fit, which you can't know. If in doubt, open.
Sizes and returns
Shokz neckbands: Standard or Mini. Everything else is one size. Buy from a retailer with easy returns and keep the packaging; Shokz's own store lists a 45-day return window.
Budget
We don't print prices (Amazon changes them daily), but the picks here run from mid-range to flagship at maker list. For a smaller budget, gifts for runners under $50 has pairs with real ratings at a fraction of the cost.
If they're new to open-ear
Send them open-ear vs bone conduction with the gift, or read it yourself: bone conduction sounds different, and a runner who expected earbud bass may need to know why it isn't there.
How we scored this
Pairs we claim to have worn: none we haven't
Plenty of sites say they ran a hundred miles in every pair on the list. We don't say that, and we say so on every page. What we do instead: classify the retention system (hook, clip, wing, neckband), record the maker's published IP rating, weight, battery, charging, mic and control type from its own product page, cross-reference at least one independent published review where one exists, and score every pick on a public rubric. Every figure links to where it came from.
Scores are editorial judgments from that documented research, not lab results. Commissions never set a score or decide a pick. The rubric and its weights are published.
Corrections & updates
- First edition.
Questions
Frequently asked
What headphones do runners actually want?
Are Shokz a good gift?
What's a good running gift under $50?
Should I buy sealed or open-ear earbuds for a runner?
Keep reading
Related on Openear Club
Receipts
Sources
- Shokz — official product comparison table (checked 2026-09-21)
- Shokz — OpenRun Pro 2 product page (checked 2026-09-21)
- Suunto — Wing 2 product page, technical specifications (checked 2026-09-21)
- Bose — Ultra Open Earbuds (2nd Gen) product page (checked 2026-09-21)
- Beats — Powerbeats Pro 2 product page, tech specs (checked 2026-09-21)
We haven't worn every pair on this site and we don't pretend to. Specs come from the maker's own product pages (linked on every product), independent findings are attributed to whoever published them, and Amazon prices change often, so we don't print them. Where a figure isn't published, we say so. Read the full method.