This microphone supports reverb effect and real-time ear return, one machine with multiple functions. This microphone is plug-and-play and auto-connect, so you can use it easily and conveniently. This microphone adopts intelligent noise reduction and 360-degree omnidirectional pickup, which can bring you HiFi and clear recording experience. It is made of ABS material. 2.4GHz wireless technology supports stable anti-interference transmission. This microphone is suitable for laptops, speakers, amplifiers, mobile phones, cameras, tablets, camcorders, etc. Name:wireless microphone Wireless version:2.4G/bluetooth compatibility 4.2 Receiving distance:barrier-free 20-25M Battery capacity:350mAh (containing) Signal ratio:90db Frequency range:new wireless transmission Frequency range:35Hz-20KHz Direction Type:omnidirectional Charging time:about 2H Working time:about 12h Charging port:Type-C Applicable:Type-C Rating input:DC5V/500MA Colour:Black Material:plastic+aluminum alloy Package Contents: 1 * Receiver 1 * Transmitters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.