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image 1 of Bone Conduction Bluetooth Wireless Headphones Open Ear Sports Earphones with Mic, Hands- Free Calls, Built-in 16GB MP3 Player - August EP400B | Black
image 1 of Bone Conduction Bluetooth Wireless Headphones Open Ear Sports Earphones with Mic, Hands- Free Calls, Built-in 16GB MP3 Player - August EP400B | Black
image 1 of Bone Conduction Bluetooth Wireless Headphones Open Ear Sports Earphones with Mic, Hands- Free Calls, Built-in 16GB MP3 Player - August EP400B | Black
image 1 of Bone Conduction Bluetooth Wireless Headphones Open Ear Sports Earphones with Mic, Hands- Free Calls, Built-in 16GB MP3 Player - August EP400B | Black
image 1 of Bone Conduction Bluetooth Wireless Headphones Open Ear Sports Earphones with Mic, Hands- Free Calls, Built-in 16GB MP3 Player - August EP400B | Black
image 1 of Bone Conduction Bluetooth Wireless Headphones Open Ear Sports Earphones with Mic, Hands- Free Calls, Built-in 16GB MP3 Player - August EP400B | Black

Bone Conduction Bluetooth Wireless Headphones Open Ear Sports Earphones with Mic, Hands- Free Calls, Built-in 16GB MP3 Player - August EP400B | Black

Colour: Black

£49.95

£49.95/each

Collect Clubcard points on Marketplace products

Colour: Black

Sold and sent by August International Ltd

Sent by courier

FREE standard delivery between Thu 29 Jan - Fri 30 Jan

£6.00 express delivery between Wed 28 Jan - Thu 29 Jan if you order before 3pm

Returns available within 30 days. Christmas gifts returnable until 31 Jan.

Highlights

  • Bluetooth 5.3 Connectivity - Enjoy stable and authentic sound quality with Bluetooth 5.3, connecting seamlessly to various devices, including smartphones, TVs, and game consoles, while also supporting traditional calls and messaging apps.
  • Built-In 16GB Storage - No need for Bluetooth? The EP400 features an integrated MP3 player with 16GB of storage, enabling you to listen to local music files without relying on your phone or internet connection.
  • IP68 Waterproof and Sweatproof - Designed for durability, these headphones can withstand rain, sweat, and dust, making them ideal for workouts, hiking, and other outdoor adventures (not suitable for swimming).

Description

Bone-Conducting Headphones – Adaptive Comfort and Freedom

Bone-conducting headphones are more adaptive than standard headphones. They can be worn by anyone, anywhere, without bulky earpads or a carry case, and thanks to the included 16GB MP3 storage, they can even be used without Bluetooth if you prefer.

Perfect for everyday use—commuting, walks, or shopping trips—these headphones keep you aware of ambient sounds like traffic for safe and secure listening. Listen to music on your bike while staying alert to your surroundings or enjoy your favourite podcast while working and remain part of the conversation around you.

With miniaturised speakers and a firm yet compact form factor, bone conduction headphones deliver the ultimate balance of quality, size, battery life, and connectivity.

Unlock True Audio Freedom with EP400: Bluetooth 5.3 and Bone Conduction Technology

The August EP400 offers excellent sound quality and connection stability with Bluetooth 5.3 technology. These bone conduction earphones can connect to smartphones (with mic for calls), TVs, game consoles, car stereos, and more.

Integrated Microphone

The August EP400 Bone Conduction Headphones feature a built-in microphone, enabling you to make traditional phone calls or connect through apps like WhatsApp, Messenger, FaceTime, Zoom, and Teams—keeping you in touch while on the go.

Interact hands-free with your favourite AI assistants such as Siri and Google Assistant for a seamless and intuitive user experience.

Onboard Volume and Music Controls

Easy-to-use control buttons let you skip tracks, adjust volume, pause your podcast, and more. No need to fumble for your phone or interrupt your workout—stay in control and in rhythm at all times.

IP68 Waterproofing and Sweatproof Design

These waterproof bone conduction headphones boast an IP68 rating, making them ideal for outdoor use. Exercise or commute in the rain with confidence. Rinse them clean if they get dirty (but do not submerge them in water—they are not designed for swimming).

The IP rating also ensures resistance to dust and sand, making them great for hikes and adventures.

Please Note: IP ratings indicate protection from water and dust ingress. Avoid exposure to chlorinated (pool) water, salt (ocean) water, or submersion under pressure. Extended contact with liquids can still cause damage.

Snappy Magnetic Charging Cable

Recharge using the included magnetic cable, maintaining full waterproof and sweatproof integrity. Fast charging (under 2 hours) provides up to 10 hours of playback time.

The magnetic cable also transfers MP3 files from your PC to the headset. When you don’t want to rely on Bluetooth, use the onboard 16GB storage to enjoy hours of offline music anytime, anywhere.

Specifications
Waterproof: IP68 (Full Waterproof Design)
Built-In Memory: 16GB
Maximum Output Power: 8mW
Rated Output Power: 5mW
Bluetooth Distance: 10 Meters
Charging Time: 2 Hours
Operating Time: 10 Hours @ 50% Volume
Weight: 25g

Box Contains
1 × EP400 Bone Conduction Headphones
1 × USB Magnetic Charging Cable
1 × User Manual

Batteries Are IncludedYes
Battery Average Life10
Battery Average Life Unit Of MeasureHr
Battery CompositionLithium Ion (Li-ion)
Battery Power180
Battery Power Unit Of MeasureMilliamp hours
Battery TypeLithium Ion (Li-ion)
Connector TypeUSB Type A
Lithium Battery Voltage3.7
Lithium Battery Voltage Unit Of MeasureVolts (DC)
Manufacturer Warranty Description1 Year Warranty Against Manufacturer Defects
Product FeaturesWater Resistant

Delivery
  • FREE standard delivery between Thu 29 Jan - Fri 30 Jan
  • £6.00 express delivery between Wed 28 Jan - Thu 29 Jan if you order before 3pm
Returns

Not happy with a Marketplace item? You can request a return and refund online up to 30 days after the delivery date. You'll need to return the item to the Marketplace seller.Our returns policy

Christmas returns

We've extended our usual returns policy for Christmas gifts. You can return gifts purchased between 1 October and 24 December 2025 until 31 January 2026.

Bone Conduction Bluetooth Wireless Headphones Open Ear Sports Earphones with Mic, Hands- Free Calls, Built-in 16GB MP3 Player - August EP400B | Black
Bone Conduction Bluetooth Wireless Headphones Open Ear Sports Earphones with Mic, Hands- Free Calls, Built-in 16GB MP3 Player - August EP400B | Black

£49.95

£49.95/each

Highlights

  • Bluetooth 5.3 Connectivity - Enjoy stable and authentic sound quality with Bluetooth 5.3, connecting seamlessly to various devices, including smartphones, TVs, and game consoles, while also supporting traditional calls and messaging apps.
  • Built-In 16GB Storage - No need for Bluetooth? The EP400 features an integrated MP3 player with 16GB of storage, enabling you to listen to local music files without relying on your phone or internet connection.
  • IP68 Waterproof and Sweatproof - Designed for durability, these headphones can withstand rain, sweat, and dust, making them ideal for workouts, hiking, and other outdoor adventures (not suitable for swimming).

Description

Bone-Conducting Headphones – Adaptive Comfort and Freedom

Bone-conducting headphones are more adaptive than standard headphones. They can be worn by anyone, anywhere, without bulky earpads or a carry case, and thanks to the included 16GB MP3 storage, they can even be used without Bluetooth if you prefer.

Perfect for everyday use—commuting, walks, or shopping trips—these headphones keep you aware of ambient sounds like traffic for safe and secure listening. Listen to music on your bike while staying alert to your surroundings or enjoy your favourite podcast while working and remain part of the conversation around you.

With miniaturised speakers and a firm yet compact form factor, bone conduction headphones deliver the ultimate balance of quality, size, battery life, and connectivity.

Unlock True Audio Freedom with EP400: Bluetooth 5.3 and Bone Conduction Technology

The August EP400 offers excellent sound quality and connection stability with Bluetooth 5.3 technology. These bone conduction earphones can connect to smartphones (with mic for calls), TVs, game consoles, car stereos, and more.

Integrated Microphone

The August EP400 Bone Conduction Headphones feature a built-in microphone, enabling you to make traditional phone calls or connect through apps like WhatsApp, Messenger, FaceTime, Zoom, and Teams—keeping you in touch while on the go.

Interact hands-free with your favourite AI assistants such as Siri and Google Assistant for a seamless and intuitive user experience.

Onboard Volume and Music Controls

Easy-to-use control buttons let you skip tracks, adjust volume, pause your podcast, and more. No need to fumble for your phone or interrupt your workout—stay in control and in rhythm at all times.

IP68 Waterproofing and Sweatproof Design

These waterproof bone conduction headphones boast an IP68 rating, making them ideal for outdoor use. Exercise or commute in the rain with confidence. Rinse them clean if they get dirty (but do not submerge them in water—they are not designed for swimming).

The IP rating also ensures resistance to dust and sand, making them great for hikes and adventures.

Please Note: IP ratings indicate protection from water and dust ingress. Avoid exposure to chlorinated (pool) water, salt (ocean) water, or submersion under pressure. Extended contact with liquids can still cause damage.

Snappy Magnetic Charging Cable

Recharge using the included magnetic cable, maintaining full waterproof and sweatproof integrity. Fast charging (under 2 hours) provides up to 10 hours of playback time.

The magnetic cable also transfers MP3 files from your PC to the headset. When you don’t want to rely on Bluetooth, use the onboard 16GB storage to enjoy hours of offline music anytime, anywhere.

Specifications
Waterproof: IP68 (Full Waterproof Design)
Built-In Memory: 16GB
Maximum Output Power: 8mW
Rated Output Power: 5mW
Bluetooth Distance: 10 Meters
Charging Time: 2 Hours
Operating Time: 10 Hours @ 50% Volume
Weight: 25g

Box Contains
1 × EP400 Bone Conduction Headphones
1 × USB Magnetic Charging Cable
1 × User Manual

Batteries Are IncludedYes
Battery Average Life10
Battery Average Life Unit Of MeasureHr
Battery CompositionLithium Ion (Li-ion)
Battery Power180
Battery Power Unit Of MeasureMilliamp hours
Battery TypeLithium Ion (Li-ion)
Connector TypeUSB Type A
Lithium Battery Voltage3.7
Lithium Battery Voltage Unit Of MeasureVolts (DC)
Manufacturer Warranty Description1 Year Warranty Against Manufacturer Defects
Product FeaturesWater Resistant

Delivery
  • FREE standard delivery between Thu 29 Jan - Fri 30 Jan
  • £6.00 express delivery between Wed 28 Jan - Thu 29 Jan if you order before 3pm
Returns

Not happy with a Marketplace item? You can request a return and refund online up to 30 days after the delivery date. You'll need to return the item to the Marketplace seller.Our returns policy

Christmas returns

We've extended our usual returns policy for Christmas gifts. You can return gifts purchased between 1 October and 24 December 2025 until 31 January 2026.

Colour: Black

£49.95

£49.95/each

Collect Clubcard points on Marketplace products

Colour: Black

Sold and sent by August International Ltd

Sent by courier

FREE standard delivery between Thu 29 Jan - Fri 30 Jan

£6.00 express delivery between Wed 28 Jan - Thu 29 Jan if you order before 3pm

Returns available within 30 days. Christmas gifts returnable until 31 Jan.

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