TRUE WIRELESS HEADSET
Model: NOAROE TWS S4
Wireless version: 5.3
Supported protocols: A2DP, AVRCP, HSP, HFP
Wireless effective distance: 13 m
Earphone battery capacity: 3.7 V 40mAh
Music playback time: about 7 h (Normal mode $80 % volume)
Talk time: about 6 h ( 80 % volume)
Frequency response: 20-20000 Hz
Earphone standby time: about 40h
Driver unit: diameter 13 mm
Charging case battery capacity: 3.7V 300mAh
Charging input voltage: 4.8-5.5 V
Charging duration: approximately 1.5 hours
