Product information:

Product features: biological diaphragm, three - screen display
Weight: about 3.8g (per ear)
Color: black
Waterproof: Waterproof for life
Bluetooth scheme :Bluetooth V5.0
Supported protocol :HFP/HSP/A2DP/AVRCP
Compatible device: Bluetooth device above 2.0
Operating distance :≥10 meters
Single ear playback time :≈5H (70% volume)
Battery Type: Polymer lithium ion battery
Output specification :5V/300mA
Headphone battery capacity :50mA
Headphone charging time: ≈2
Charging bin capacity :300mA/h

Packing list：

Bluetooth Headset*1