Product Information:

Product model: E3 wireless music headset
Bluetooth version: Bluetooth5.0
Bluetooth protocol: Hfp a2dp avrcp avdtp spp sdp
Effective distance: 10 meters
Audio decoding: Sbc
Working hours: About 4hours
Frequency response: 20hz-20khz
Charging input: 5v-180mah
Earphone battery: 50 ma
Charging box battery: 200*2 ma

Packing:
Wireless headset X1