*2 channels.Adjustable frequency.
*IR automatic. Totally 400 frequency.Each channel has 200 optional frequencies, stepping up/down by 0.25MHz.
*20 controllers can used simultaously.
*LCD screens show working status on the receiver and emitter.
*Handheld microphone power consumption is 80mA. With 1.5V*2 battery power supply, it can work constantly for 5 hours.
*Beltpack microphone power consumption is 80mA. Built‐in lithium battery power supply, it can work constantly for 8 hours,
*Beltpack mircrophone is metal body,handheld microphone is metal body.
*Working distance: 50‐80 meter.
*It's suitable for various kinds of meeting occasion