The Bluez 2 Bone Conduction Headphone is a wireless headphone that uses bone conduction technology to send sound via vibrations to your inner ears, bypassing your eardrums. The headphone does not cover your ears, allowing you to hear the sounds around you while listening to music or talking on the phone. Listen to music or calls without tuning out the world, letting you stay safe and alert. Stereo sound via mini vibrations travel through your cheekbones to your inner ears, bypassing your eardrums. Noise canceling microphones enhance speech. Multifunction button for controlling music and calls. Works with Bluetooth compatible devices. The Aftershokz Bluez 2 is a stereo Bluetooth headphone with wireless phone and music functions that uses bone conduction technology to transmit sound. The Bluez 2 works with Bluetooth-compatible devices. Stay safe and alert to what's happening around you while listening to music or when you're on a call. The headphone wraps around the back of the head, while the transducers rest on the cheekbones in front of your ears. Stereo sound is transmitted through mini vibrations to your inner ears, bypassing your eardrums. Running, biking, working out or working, the Bluez 2 fits around your head and does not cover your ears, so you can still be aware to the world around you. Noise canceling microphones, PremiumPitch and LeakSlayer features enhance speech and decreases natural sound leakage while listening to your music or calls. How do these bone conduction headphones work? A common misconception is that our ears are the only instruments we possess that allows us to hear. Although you are not entirely incorrect, there is another method of listening: bone conduction. Aftershokz headphones have a pair of transducers to power your music into your head. With one transducer resting on each side of your head, vibrations pass sound off of the surface of your face. This contact point allows the headphones to conduct sound onto the bones of your head. These vibrations send sound all the way from your cheekbones to your inner ear, allowing sound to reach the cochlea without even using your ear drum. Features: Uses bone conduction technology to transmit sound OpenFit design promises ambient sound awareness and extended comfort PremiumPitch technology provides the finest and most detailed audio LeakSlayer feature decreases natural sound leakage Nanotechnology coating and watertight rubber gaskets repel sweat and moisture from the inside out Equalization presets customize bass and vibration on the go Dual noise canceling microphones exclude surrounding noise, effectively enhancing speech Audrey Says™ voice prompts seamlessly guides you through power, pair, play and talk Bluetooth v3.0+EDR A2DP, AVRCP, HSP, HFP Range up to 33 ft (10m) Rechargeable Li-Ion battery Continuous play: up to 6 hours Standby: up to 10 days Includes: Bluez 2 wireless headphone Adjustable tension band Reflective stickers Micro-USB charging cable Waterproof storage bag Options available: Black (pictured above) Black/Neon