Bone Conduction Glasses with Open-Ear Headphones, Smart Glasses Dual Bluetooth Pairing, Blue Light Glasses Photochromic Lenses, IP6 Waterproof, Hand-Free Calls and Music, Day and Night, Upgraded
- ...Waterproof】built-in 250 mAh battery fully charged within 2 hours can support 10 day of Standby, 4 hours of playback and 3 hours of conversation. Actual battery using time may differ from volume and sound source. IP6 waterproof rating endure raining or sweat from outside activity and easy maintenance..
- 【Hand-Free Calling and Music】with this wireless smart glasses, you don’t have the hassles of picking up your phones while you are driving or jogging. The buttons in the frames provide easy access to control volume, answer/hangup call, switch songs, pause/replay music etc. For best listening experience, keeping volume of bluetooth devices like cell phone at 50%-60% is recommended.
- maximum 100% volume may lead to sound leakage or echo during calling..