UHF wireless microphone is a microphone that uses ultra-high frequency radio waves for signal transmission. It is usually used for stage performances, speeches, conferences and other occasions. High frequency transmission: UHF wireless phone uses the ultra-high frequency band for signal transmission. Compared with the traditional VHF band, the UHF band has less signal interference and can provide more stable audio transmission Longer working distance: Due to the characteristics of the UHF frequency band, UHF wireless microphones can achieve longer distance transmission, allowing performers to have more space for activities on the stage Multi-Channel: UHF wireless profiles usually support multiple channel selections. This means multiple sets of wireless microphones can be used simultaneously in the same area without interfering with each other Anti-interference ability: UHF technology is more resistant to interference signals, reducing the interference of other electronic devices on wireless microphone signals Flexibility: UHF wireless handsets usually have a portable design, which is easy to carry and set up, suitable for various live performances and events Specifications: Frequency response: 60Hz-18KHz Transmit power: 15dB±2dB Microphone sensitivity: -56dB±3dB Receive sensitivity: -106dB Working distance: 30m (in an open and barrier-free environment) Working channel: A-12 frequency points/B-12 frequency points Built-in lithium battery: Microphone: 18650-1200mAh, Receiver: 18650-1200mAh Maximum current: 95mA Battery life: about 12 hours