Plug and play, without pairing Built-in PCB antenna Strong anti-interference, SNR 80bB dynamic range 81dB, rsensitivity-90dBm Transmission distance is more than 50 meters(static) in open area, the use space is 30 square meters Working Frequency Band: UHF free frequency Uses UHF wireless free emission and USB reception Preset fixed channel, 20K sampling resolution 16bit Frequency Response: 20Hz ~ 16KHz Low power consumption. 10dBm RF output power reduce other equipment in the same frequency band