Thank you for viewing! ・Brand new/Unused [Unopened] ・Instant purchase is OK! [Brand new/Unused] Bone Conduction Headphones Wireless Bluetooth Bone Conduction Bluetooth 5.4 IPX7 Ear-hook type Bluetooth 5.4 Ultra-lightweight High-quality sound with microphone IPX7 waterproof Sports Running [Best Bone Conduction Headphones for Beginners] Unlike conventional earphones that transmit sound through the eardrum, bone conduction earphones use the latest unique bone conduction technology, and sound reaches the brain as vibrations through the bones! The first-time wearing experience of these bone conduction earphones is as light as a feather, only 28g!! You can hear music without blocking your ears, so there's no feeling of pressure, and it's comfortable even for long periods of use! Furthermore, we have succeeded in reducing sound leakage by about 50% compared to conventional bone conduction earphones. [Perfect for Sports!] The bone conduction earphones use a titanium frame, which provides a soft yet secure hold, and will not fall off even if you shake your head from side to side or strain yourself. The neckband also retains its holding power while being soft and flexible, providing a secure fit even during intense training such as muscle training! You can use it with peace of mind. The vibrating part also gently nestles against your temples, making it so comfortable that you'll almost forget you're wearing it. It supports the waterproof and dustproof standard [IPX7], and is also resistant to rain and sweat! You can fully enjoy sports while being aware of the surrounding traffic conditions and the presence of people! You can easily control "music playback/pause, skip forward, skip back, volume up, volume down, answer/hang up/end calls" with one hand. [Fully Wireless Bone Conduction Earphones Bluetooth - Enjoy Music More Freely] Bluetooth 5.4 communication provides a stable Bluetooth connection that is not affected by congested radio wave environments outdoors! Because it is a fully wireless type, you are freed from the hassle of cables, and you'll feel as if music has become a part of you! [Type-C Fast Charging] Compared to conventional magnetic charging, the USB Type-C charging port is adopted, solving the problem of the magnetic part getting hot during charging. It also supports fast charging, making charging "safe," "fast," and easy and convenient, securing up to 2 hours of use with a 15-minute quick charge. Continuous playback time is up to about 14 hours.