Carrier frequency : 2.4GHZ+Bluetooth

Frequency range : 20 Hz – 20 KHz

Working distance : up to 15 M

Working distance :up to 30 m

Charging time : 2-3 hours

Working time : 9-1O hours

Battery capacity : Li battery 400mAh

TX connector : USB-A

Microphone: external pluggable Microphone