Plug and play, insert the receiving end into the device, take out the transmitting end from the charging compartment, and it is ready for use.Turn the side slide button to reduce noise with one click. The noise reduction indicator lights up, which means the noise reduction function is turned on. The operation is very simple.2.4G wireless transmission. 2.4G wireless communication is used between the transmitter and the receiver. The transmission distance is long and the delay is low. The sound data can be transmitted stably in complex environments.Using precision ceramic antennas and scientific layout design, it can achieve a wireless transmission distance of up to 40 meters.The total net weight of the product is 70 grams. The charging compartment can store the receiving end and two transmitting ends, making it very easy to carry.