Specification: Size 140*110*50mm Weight 32 G Colorblack / white Waterproof rating IP66 Main chip CSRWorking frequency band ISM band (2.402-2.480GHZ) Transmit power Class 2 (-6dbm-4dbm) Maximum output power 8m W Rated output power 5m W Bluetooth antennabuilt-in ceramic antenna Working distance 8-10 meters Physical button 3 (ON/OFF volume +-) Bluetooth BT4.1 Microphone SMD silicon wheat -42d B 3d B Speakerbone conduction horn Sensitivity 88+/-3d B Frequency response range 80HZ~20KHZBattery 200m Ah rechargeable polymer lithium battery Play time 6-8 hours Standby time 20 days Charging time 1.5~2 hours Charging voltage DC 5V 500m Ah Charging methodmagnetic charging cable
Features:- Subwoofer & vocals, switch at will. Press the volume up & down button for three seconds at the same time.- Magnetic charging for durability. The adsorption interface is easy to remove & fast & safe.- No need to enter the ear. Bone conduction tone. Dont put it in your ears. No ears, comfortable & safe.- 2 hours fast charge, lasting battery life. In the state where no music is played & Bluetooth is not connected, it will automatically shut down in about 5 minutes. Listen to the song for 6 hours & stand by for 10 days.-CSR4.1 high protocol version, low loss, more stable transmission & enhanced compatibility.- Ergonomic design, the bend will not be damaged.- One button operation, simple & fast.- Bone conduction Bluetooth stereo sports headphones. 100% pure bone conduction technology, sound transmission is more direct, safer, less externa