From the Gold Medallists
What they love.
World-class opinions. In their own words.
@archie_goodburnArchie Goodburn
British Champion
@honeyosrinHoney Osrin
Paris '24 Olympian
@m4ttrichardsMatt Richards MBE
2× Olympic Champion
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01
Proper game changer.
- Matt Richards MBE -
Falling out? Not a chance.
Stay put.
Stay on.
Your earphones fall out halfway through training - you know the feeling. One hand on the rope, the other constantly minding your earbuds.
The Sprinter 100's 35° adjustable Fit-Tip™ wraps securely around your ear - not inside it. Set once, forget it.
Safe & Sound
Music and
the world.
Earbuds block traffic, coaches, training partners - a serious safety issue for outdoor athletes. Bone conduction delivers music through cheekbones, leaving your ears completely open for awareness.
Using them in the office too? Fold in the Fit-Tip™ to block out noise. Best of both worlds.
Sweat damage? Unheard of!
Headphones that
survive the water.
Sweat resistance isn't waterproofing. Most headphones corrode or die in the gym within months - let alone the pool.
The Sprinter 100 is IPX8 rated - full submersion. The same spec Ampact's Olympic & World champions train with every day.
MP3 mode
Leave your
phone in the locker.
Bluetooth signal doesn't travel underwater - that's physics. So most swimmers train in silence - and that's boring.
8GB storage built-in, the Sprinter 100 holds 2,000+ songs to play in MP3 Mode. Load your playlist, dive in or work out without your phone weighing you down.
Size Guide
Your perfect fit.
Same technical specs. Two neckband sizes.
Tap image to see how they fit →
Mini · Shorter neckband
A closer fit for average heads, ideal for smaller heads
Regular · Longer neckband
A relaxed fit, comfortable for larger heads
Still not sure?
The Regular is the comfortable first choice. Runners & gym-goers love the Regular most. Mini is the go-to for swimmers, cyclists, and is the top pick for most ladies.
Genuine Customer Unboxing
See exactly
what arrives.
No filters. No editing. A real unboxing clip by one of our customers - from the outer shipping box all the way through, exactly as it lands.
Detail matters.
The full picture.
Tech specs & FAQs.
Technical Specifications
- Headphone Drivers :
16mm Bone Conduction Transducers - Frequency Response : 20–20,000 Hz
- Microphones : 1x Omni-directional
- Bluetooth Version : 6.0
- Bluetooth Profiles : A2DP / AVRCP / HFP
- Audio Codec : SBC, AAC
- Range : Up to 10m / 33 ft
- Memory Capacity : 8 GB
- Supported Music Formats:
MP3 / FLAC / WAV / APE / M4A - Input : 5V 200mA
- Playtime : Approx. 10h
(based on 70% volume level) - Charging Time : Approx. 1.5h
- Battery : 180 mAh Rechargeable
- Lithium-ion Polymer Battery
- Operating Temperature : 0–45°C
Product Basics
Q: What are bone conduction headphones?
A: Bone conduction headphones deliver sound through vibrations on your cheekbones, leaving your ears completely open. This means you can hear your music while still being aware of your surroundings — essential for outdoor sports and hearing coach instructions in the pool.
Q: What’s the difference between the Regular and Mini size?
A: The Mini features a shorter headband designed specifically for female athletes, juniors, and anyone with a small-to-average head circumference. It’s also ideal for sports requiring caps or helmets. Both sizes deliver the same audio quality and premium features.
Bluetooth & Connectivity
Q: Does Bluetooth work underwater?
A: No – Bluetooth signals don’t transmit through water. That’s why we include built-in MP3 storage. For swimming or phone-free use, simply load your music directly onto the headphones and you’re ready to go.
Q: Do they support multi-device connection?
A: Yes! The Sprinter Series support standard Bluetooth multipoint and can connect up to two devices simultaneously.
Q: Can I take calls with these?
A: Yes – the built-in mic allows for hands-free calling and digital assistance activations when connected via Bluetooth.
Swimming & Water Use
Q: Waterproof?! Really?
A: Yes – IPX8 rated and tested to 5m submersion, they are designed for swimming, open water, and all-weather training.
Q: Will they fall out during flip turns or hard push-offs?
A: No – the adjustable fit and secure design keep them in place through flip turns, starts, and high-intensity intervals.
Q: Do I really need those little mic plugs?
A: The mic plugs are mainly to prevent limescale build-up in hard water areas. The mic itself is perfectly waterproof (tested to 5m direct exposure), so if they pop out mid-set, honestly just toss them. A bit of our overengineering! 😅
Music & Playback
Q: How do I load music to the headphones?
A: Just plug them into your computer via the magnetic USB cable – they’ll show up like any USB drive. Drag and drop your music files directly into the folder. No software needed. We support MP3 / FLAC / WAV / APE / M4A formats.
Q: How do I switch between Bluetooth and MP3 mode?
A: A 2-click on the multifunctional “M” button toggles between modes. Simple. And in MP3 mode, a quick 4-click on the “M” button toggles between shuffle and sequential play.
Q: Do they work with Spotify/Apple Music?
A: Yes – in Bluetooth mode, you can stream directly from any app. Bluetooth signal doesn’t work through water, so for underwater listening, you’ll need to use MP3 mode. Simply download your playlists as MP3s (many online services allow this) and transfer them via USB.
Battery & Charging
Q: How long does the battery last?
A: Approximately 10 hours of continuous playback.
Q: How do I charge them?
A: The magnetic clip-on cable attaches easily – no fiddly plugs. A full charge from empty takes about 1.5-2 hours.
Q: Is the charging cable included?
A: Yes – every box includes 1x magnetic charging/data transfer cable.
Durability & Warranty
Q: What’s the warranty?
A: All Sprinter 100s come with a 1-year warranty against manufacturing defects.
Q: How do I return if there’s an issue?
A: Contact us with your order number and issue description. If a return is needed due to manufacturing defect, we’ll provide a prepaid shipping label.
Orders & Shipping
Q: Do you ship internationally?
A: Yes – we currently offer free worldwide shipping!
- UK domestic orders are typically sent by Royal Mail.
- EU orders are fulfilled by our warehouse in Germany.
- Asia & Americas orders are handled by our APAC centre in Hong Kong.
All orders take up to 2 days for processing, plus 2-7 days for delivery depending on your location.
Q: What’s in the box?
A: Sprinter 100 / 100 Mini headphones, magnetic charging/data cable, mic plugs, and Quick Start Guide.
Q: Can I try them risk-free?
A: Yes – 14-day return policy. If they’re not for you, send them back (see Refund & Exchange for details).
olliesmith01 (verified owner) –
I have to say they know what swimmers want. I brought these after seeing the coach at my pool wearing them entirely under the cap. Only thing is you’ll have to use MP3 mode in the pool, I thought I could just stream but no. The fit is spot on and I use them for commute too, feels so much safer. Overall a very solid pair.
ddawnn (verified owner) –
Very nice colour! Head turner in the gym.
richardm (verified owner) –
My son trains 5 days a week in the pool and spent his birthday money on these headphones. He’s very happy with them.
claire_b (verified owner) –
I bought the minis for morning runs and outdoor bootcamp. Open ear defo feels safer and more connected. The silicone build feels premium, sound is crisp and clear. The foldable earpieces are my favourite I can always adjust them to my liking. Proper chuffed.
e.ezpz (verified owner) –
The fact that I can rinse them after a workout and not worry about sweat or water damage is just brilliant!
emma.wilkinson (verified owner) –
Big thumbs up for Ivy who helped me throughout the swap. Sized down from the regular and the fit is unmatched! I would recommend ampact to anyone shopping for headphones.
fi_campbell_swims (verified owner) –
I was so surprised for how good these sound underwater! Music in the pool changes everything! Easy swims this week, best boredom killer!
amg_gorman (verified owner) –
I recently purchased these after using Shokz open run pro for the past 2 years. Shokz couldn’t play music organised in folders but these got no such issue. Waterproof and sound is as good if not better. Build quality’s better too and more affordable. I love them.
briaconnolly (verified owner) –
No budge at all and 10/10 for workout.
ayto_sam (verified owner) –
Fit is good and easy to adjust to the ears. Easy instructions and solid connection. Sound quality is good but don’t expect much bass. I use mp3 mode to run so I don’t have to carry my phone. Very good headphones.
swimelephant (verified owner) –
Comfortable to wear with just the right amount of clamping to stay secure. Sound underwater is even clearer, what a surprise! Would recommend to anyone who swims.
kev_murphy88 (verified owner) –
I brought these as a Christmas gift for my son who swims 5 times a week. The size is perfect and underwater clarity is genuinely impressive. He loves them and I’m getting myself a pair.
adrian.m.jeakins (verified owner) –
Headphones are solid and would recommend.
clifton_muller57 (verified owner) –
Would have ordered regular but glad that I size-checked and they fit just right! Very comfortable and light weight. Great product and great service.
pete_morgan (verified owner) –
This is our second pair. My wife tried them and borrowed permanently.. Mini fits well but no red and I don’t mind them bigger. You can clearly hear what you’re listening to and also hear what is going on around you. Good value for money.
m4muse (verified owner) –
Nice fit and great sound.
rdavies (verified owner) –
These earphones were a bday gift for my boyfriend who swims and he loves them!
bob_ellis_006 (verified owner) –
I am new to conduction headphones and didn’t want to spend a fortune trying them out. Turns out really handy for working out, shopping, etc. The sound quality is great and the fit is perfect. Totally worth the money.
jamesallan (verified owner) –
Crisp sound underwater and I like the adjustable tips. Fit very well too with goggles and cap. Great for when you need that extra motivation.
smileywendy (verified owner) –
Anyone running outdoors should get these!!
s.darby (verified owner) –
They’re comfortable enough to wear for hours and I don’t have to pause or take them off to hear people. Post took longer than hoped but Rebecca kept me looped in the whole time. Would recommend.
jaz-gabriel98 (verified owner) –
Open ear abs essential on busy london street!
anna_hilpert (verified owner) –
Like everyone said the size is just right. I use them on runs, but the real win for me is being able to listen to a podcast while cooking and still hear the chaos in the house. With two little kids, I need to know what’s going on. These headphones are lifesavers.
sylviaw02 (verified owner) –
I tried shokz in store and they were too big then I brought this mini. size is spot on just right for me! The sound is clear and overall very good quality. Highly recommend for all ladies.
ellachadwick612 (verified owner) –
No fuss just works. Comfy, good battery, and they don’t fall out. Waterproof is a great bonus for rainy walks.
Teresa (verified owner) –
Chose the Lavender at last, and the colour is just as seen in the pictures exactly what I wanted! The mini size fits very well even when I wear them with my goggles, and I have long hair. Great headphones.
isabel.c (verified owner) –
I use these for my crossfit trainings and they are great fit for smaller ears. The sound is great and they stay on securely even when soaked in sweat. I love the baby blue colour!