Bluetooth Version: V5.0Channel system: stereoBattery Capacity: 55mAh, 3.7V / 300mAhdrive unit: 6mmCharging time: 1hCall duration: 3hMusic Duration: 2.5hSensitivity: 92dB 3dBSpeaker impedance: 32 15%Contract Support: HSP / HFP / A2DP / AVRCPinput loading pattern: DC 5VWorking frequency Bluetooth: 2.402G-2.480GMaximum Transmission Distance: 10Mmultipoint connection: SupportWearing method: earFeatures: Wireless Charging Stand"product characteristics: Function IPX4 waterproof / sweat-proof. Ergonomic design fits comfortably and does not fall. The elegant portable charging slot can charge the headset No true binaural wire, you can also choose to use the mono or binaural mode. automatic pairing mode when taking the headset, it is not necessary to press the button to turn When talking on the phone, the two ears can meet 300 hours standbyNet Weight: 50gWith wireless charging functionTouch the operation up and down, answer calls and other functions "