Bluetooth sleep headgear

Bluetooth specification: V5.0+EDR/A2DP/AVRCP/HFP
Frequency range: 2.4026GHz-2.480GHz
Transmission distance: more than 20 meters
Channel: stereo
Speaker parameters: 32 ohms/30mm
Speaker power: 10mW*2
Signal to noise ratio: 104dB
Function: previous song, next song, volume up, volume down, play, pause, answer a call, make a call, activate SIRI, microphone intercom
Play time: 13 hours (100% volume test on iPhone)
Talk time: 14 hours or more
Standby time: 350 hours or more
Charging time: about 2 hours
Packaging accessories:
1 Bluetooth headset
1 sleeping bandana
1 USB charging cable
1 manual