Lossless conversion: Maximize the sound of a wired microphone Supports a wide range of devices: The microphone wireless mission system consists of two parts: a mitter and a receiver LCD screen display: The LCD display clearly displays various working states 14500 Rechargeable battery: 4 Hours Battery life, 3 Hours Charging time, 2000 Times Repeat use Receiving distance: Allows you to move frely in use Multiple sets of devices are connected: Smart compatible, Simple and convenient, easy to use, enjoy the fun of wireless mission. Applicable scenarios:Life and entertainment assistant. Type:640-690MHz Colour:Black Material:Aluminum alloy Package Contents: 1 * Microphone mitter 1 * Microphone 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.