Wireless Microphone System - Ultra Long Distance

***Used once only and wasn't compatible to my amplifier. RICHMENT001 2 In 1 and 3 In 1 and 4 In 1Handheld Wireless Microphone Professional Head-Wear Mic Volume Amplifier Voice Amplifier for Classroom Speech Teaching Radio Loudspeaker Teacher Description: 1. Does not support mobile phones/for Mac/laptops-the latest upgraded wireless microphone headset system: using advanced UHF wireless transmission technology. Provide a stable wireless connection of 160 feet (50M) in open areas. Suitable for teaching, stage performances, conferences, etc. 2. Handheld Microphone: The microphone can also be used as a handheld microphone, allows you to move around more freely and show highlights or important facts, very suitable for fitness coaches, teachers and dance coaches. 3. Easy to Use: Please turn on the power switch of the transmitter and receiver, the blue light will flash for about 2 seconds, the indicator light will stop flashing after the match is successful, and then you can use it without