Bluetooth version: V5.2 Zhongke Lanxun 5616B
Support protocol: –Hands Free 1.6/ -Headset 1.1/ -A2DP 1.2/ -AVRCP 1.5
Channel system: stereo sound
Call time: 7h, playing time: 7H
Charging time: 1.5H
Charging warehouse capacity: 240mAh
The best call distance: about 1M
Maximum transmission distance: about 8-10m
Voice prompt support
Veter diameter: 18mm
Bluetooth operating frequency: 2.402G-2.480g
Methods: hanging formula