A. Wireless lapel microphone: The transmitter can be placed in a pocket or clipped to a belt. Clipping the microphone to a tie or clothing may yield better effects. B. It uses ultra-high frequency (UHF) wireless transmission technology, with relatively stable transmission and a transmission distance of around 40 - 50 meters. This wireless microphone also has noise reduction and low interference functions, helping to ensure relatively clear and stable sound. C. The wireless microphone can be widely used for voice amplification, particularly in scenarios such as classroom teaching, conference speeches, tour guide explanations, and stage performances. It needs to be used in conjunction with devices such as amplifiers and speakers. Please note that it may not be suitable for speaker devices with a power below 100W and may not be compatible with portable Bluetooth speakers, smartphones, and tablets. D. Simply insert the receiver into the microphone interface of the device, turn on the transmitter and the receiver, and wait for a few seconds, and they will likely connect automatically. E. Charge the transmitter and the receiver simultaneously via a dual USB cable, which takes about 2 - 3 hours. After being fully charged, it can work continuously for over 6 hours. F. Color: Black G. Material: ABS H. Package contents: - 1 wireless transmitter - 1 wireless receiver - 1 dual-charging USB cable - 2 adapters - 1 clip Only the above package contents are included, and no other products are provided. I. Note: Light and different displays may cause slight differences between the color of the item and the actual product. A measurement error of ±1 - 3 cm is allowed.