Features: 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. 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 Specification: Name: Multifunctional Microphone Frequency band: UHF Signal-to-noise ratio: Greater than70dB Distortion: 0.5% Working channel: 50 x 2 Frequency response: 50-18KHz Delay: Less than3ms Receiving distance: about 30m Microphone power supply: 1200ml Receiver box power supply: built-in lithium battery Receiver box battery life: about 5 hours Charging time: 2-3 hours transmission can be connected immediately after booting, anti-interference. Material: plastic+metal colour: black Package Contents: 2 x UHF Microphone 1 x Conversion Plug 1 x Charging Cable 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.