Frequency: 20-20kHz10m
Working distance: 10m
Sensitivity: -49dBt3dB
Directivity：Omnidirectional
Battery: 3.7v 250mAh bulit in
Charging voltage：DC 5V
Charging time：about 1.5 hour
Play time: 20hours
Talk time：20hours
Standby time: about 100hours
Email cannot be empty
Password cannot be empty
Email format error
Email cannot be empty
Email already exists
6-20 characters(letters plus numbers only)
The password is inconsistent
Email format error
Email cannot be empty
Email does not exist
6-20 characters(letters plus numbers only)
The password is inconsistent
