Bone conduction headphone, IPX8 waterproof, come with adjustable silicone band, comfortable to wear, protects hearing well, suit for most people. Bone conduction headphone the sound vibrations go, by bone, straight to the inner ear, instead of insert your ears, it's protects your hearing well.Wireless sport headphones bluetooth 5.0 with micophone and call voice assistant, wireless distance up to 10M, you can pick up phone calls anytime.Bone conduction earbuds is made of Titanium alloy material, 360° bending and folding, it's not easy to damage, come with adjustable silicone band.PX8 level waterproof, built-in 16GB memory, you can enjoy music, e-books etc. Suit for swimming, sports, workout, jogging, hiking, cycling, etc.Note: When there is sound in the external environment, it needs to be used with earplugs to achieve high-quality sound effect through earplug noise reduction. What You Get? 1*Bluetooth Headphones 1*USB Cable1*Manual Specifications: Model: K8Type: Sports Swimming HeadphonesMaterial: Titanium alloy + siliconeMode: Bluetooth V5.0+ MP3 PlayerMemory: 16GB (store 4000+ music)Wireless Distance: 10MBattery capacity: 350 mAFrequency Range: 20-20kHzMicrophone: Anti-interference -42dBMusic formats: Support WMA, MP3, WAV, APE, FLAC, etc. Air Conduction Technology Built-in MP3 Player and 16G Memory Bluetooth 5.0, Waterproof IPX8 Open-ear Design, Stereo Sound, Ultra Light Music/talk time 12h High Fidelity Stereo Professional lossless sound qualityBluetooth 5.0, wireless distance 10mBuilt in MP3 player, 16G memoryOpen ear headphones designEnjoy the music while still be aware of the surroundings. Easy To Operate Multi-function button, one button to answer/hang up/pause/play, and call voice assistant.Open-ear headphones the physical buttons design as it prevent “accidentally”pressing touch sensitive buttons on other headsets. Long Battery Life Charge time 2HTalking/music time 12HAllows you enjoying the music for a long time.