KM208 Wireless Microphone Collar Clip-on Portable Neck Mic with Fm Transmitter Receiver Lapel Clip

Description: Product type:Wireless microphone Frequency response range: 210-266 MHz (Hz) Distortion rate: 2 (%) Speaker receiver: 33.4g Weight: 15.5g Call initiator: 54.6g The transmitter is: 9 volt battery The receiver is: 1.5 volt battery Fixed frequency: red light 115.5 green light 111.5, 6.3mm plug receiver Frequency response: red dot 115.5 Effective distance: 20 meters, ideal for teaching, understanding and monitoring products Transmitter power supply: 1x6-f22 9v battery (excluding battery); Transmitter size: 100mm x 63mm x 21mm Receiver power supply: 1x1.5 AA batteries (excluding batteries) Note: 1. If the transmitted sound is loud or small, please consider replacing the battery first. If it is invalid, please send it to the designated service center. 2. If the product will not be used for a long time, please remove the battery. 3. If the microphone is too close to the receiver, it will generate a lot of noise, and then damage the product, so please try to grasp the distance