Multi-functional control microphone, function is equivalent to a small mixing console. Dynamic microphone core, full pickup, effective noise reduction, making the sound more delicate and the singing more beautiful. Built-in rechargeable lithium battery, fully for about 8 hours. Receiver with bluetooth function. It adopts 3.5mm interface connection and comes with 6.35mm conversion plug, compatible with a of devices, plug and play. It can be connected to mobile phones, sound cards, power amplifiers, outdoor speaker mixers, etc. Metal anti-drop mesh head, the metal mesh cover can effectively protect the microphone core and effectively prevent damage. Long transmission distance, UHF frequency band signal transmission can be connected immediately after booting, anti-interference. wireless microphone. The microphone is equipped with regular AA batteries, and the receiver is equipped with rechargeable lithium batteries. Name:Multifunctional Microphone Signal-to-noise ratio: 100dB Distortion:less than equal 0.3% Frequency response:50-18KHz Delay:Less than 3ms Receiving distance:about 20m Receiver box power supply:built-in lithium battery Receiver box battery life:about 6-8hours Charging time:2-3 hours Colour:Black Material:Plastic+Metal Package Contents: 2 * Wireless Microphone 1 * Receiver 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.