Carrier frequency : 2.4GHZ+Bluetooth
Frequency range : 20 Hz – 20 KHz
Working distance : up to 15 M
Speaker size: 40mm
Charging time : 4-5 hours
Working time : Backlight on: 12 hours;
Backlight off: 20 hours
Battery capacity : Li battery 980mAh
TX connector : 3.5MM jack in; Optical in; USB-C (Power+data)
Microphone: external pluggable Microphone
Support 3D surround sound
Automatically power on