Carrier frequency : 2.4GHZ+Bluetooth

Frequency range : 20 Hz – 20 KHz

Working distance : up to 15 M

Speaker size: 50mm

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