Features: Wireless bone conduction Bluetooth headset not in ear Foldable running Bluetooth headset Air conduction/binaural HIFI sound quality/IPX5 waterproof and sweat proof/protective eardrum/high endurance standby/hard to get rid of 1. It is inaudible, safer to exercise, and can hear external sounds at any time 2. Comfortable without plugging your ears, no strange feeling, no pain after long wearing 3. Healthy, protect eardrums and prevent bacteria from growing 4. Communication is unimpeded. You can hear the outside voice, listen to music and also communicate with others 5. The air conduction does not enter the ear, which will not hurt the ear. It is safer and more comfortable to wear for a long time 6. Air conduction induction, to avoid embarrassing sound leakage, professional silencing technology, effectively reduce sound leakage, care for privacy, and avoid interference of sound leakage. 7. The rear suspension design made of titanium alloy is used to balance the body and keep you enjoying every movement moment 8.18 hours of strong endurance, 120 days of super long standby, go to sports at will, and keep music 9. Life class waterproof, no fear of wind, rain and cold to prevent damage to the device by sweat and rain 10. There is no delay in the game, 10 m transmission is barrier free, and one step game of hearing and position recognition is 0 delay 11. Low power consumption 5.2 chip, strong signal, one second connection, more stable listening and talking. 12. Intelligent active noise reduction, as clear as outdoor calls. 13. New adaptive noise reduction technology to judge the noise intensity and type of the environment in real time, 14. Automatically adjust the appropriate noise reduction mode to make voice and call clearer. 15. Multi functional control, all in one finger, physical keys, one hand blind operation, easy song cutting, fast call Specifications: Channel: bilateral stereo Usage: ear type/adjustable hair hoop Color: black/blue/dark green Radio frequency: 2.4GHz Support protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 Transmission distance: 10m Battery capacity: 180mAh Charging voltage/current: 5V/1A Charging time: about 2 hours Horn impedance: φ 8mm 32Ω Mic sensitivity: - 42Db Operating temperature: - 10-50 ℃ Packing list: 1 * Headset 1 * Charging line 1 * Instructions

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