Transmission Type: 2.4GHz Wireless

Polar pattern (built-in microphone): omnidirectional

Builtin mic frequency response: 80hz-16khz

External microphone frequency response: 50hz-18khz

Maximum output level: +2.2dbu

Maximum spl: 100db spl (1khz @ 1m)

Thd + n: 0.4%

Without light: 82db

Power: built-in li-po battery 350ma/3.7v 2pcs

Charging port: USB-C, dc 5v 1a max

Battery life: up to 6 hours

Audio input: 3.5mm TRS lavalier microphone input (transmitter)

Audio output: 3.5mm TRS (receiver)