?Plug-and-play: Turn on the transmitter and receiver switches, press the "+" and "-" at the same time after the transmitter is turned on, and the working light will flash after 1 second, and the LED screen will move quickly (pairing status). Wait until the receiver indicator stops flashing. Pairing is successful. So you can achieve maximum comfort and freedom of movement. The lavalier mic help you get rid of the shackles of the cable and free your hands. ?Long Standby Time: Built-in polymer lithium battery has long battery life, and it is equipped with a two-in-one charging cable, which is convenient to charge. It can be used for about 8 hours per charge. ?High Quality: Multiple groups are used without string frequency, the microphone frequency is U-band frequency conversion, and there are multiple groups of frequency points that can be adjusted. High-sensitivity microphone, using back-pole condenser microphone core, plus noise reduction sponge, higher sound quality and clearer voice ?Multiple Compatibility: Compatible with MIC interface equipment, equipped with 6.35mm and 3.5mm adapters, UHF high frequency reception, strong anti-interference, anti-howling, smart and compact. Compatible with a variety of equipment, such as: power amplifier, outdoor audio, home theater, car audio and other equipment. ?Wide Applicability:The UHF wireless mic can be widely used on voice amplifiers, large power speakers, like stage speaker systems, media classroom speakers, bus speakers, trolley speakers, etc. It is the best choice for stage performers, tour guides, teachers, coaches, presentations, etc.