DescriptionAre you looking for a professional, yet affordable Bone Conduction Earbuds? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional Bone Conduction Earbuds must meet you needs. It is one of the best choices for you.Features- Color: Black . - Material: Plastic. - Size: About 6x3x1.5cm/2.36x1.18x0.59inch - Version: V5.0 + EDR compatible with V3.0, V2.1, V1.1 - Transmission power: Class2 - Transmission frequency: 2.4GHz - Transmission distance: more than 10 meters - Talk time: 13 hours - Battery: 140mAh - Bone conduction design, not feeling hurt or swollen after long time wearing - High performance moving coil unit, HiFi sound effect, clean and balanced sound - Waterproof and sweatproof, for exercise and outdoor activity. - 270 degree rotation, you can wear it on left or right ear. - One key to play/pause, answer/hang up, reject call and redial.