USB plug and play supports audio devices with USB interface, which can live broadcast and mobile phone recording. When connecting the mobile phone, you need to use OTG conversion and dual male USB cable Bluetooth player mobile phone is connected to Bluetooth player to release the constraints of distance and play the music you want at any time Three power supply modes the mixer is equipped with three power supply modes - power line power supply, charging treasure power supply and computer power supply. It can be used indoors or outdoors, providing you with convenient use modes High quality audio interface 4-way microphone input, two of which are left and right channels. 6.3 connector and XLR male connector can be accessed, and the transmission is stable and reliable. 2-segment balance adjustment can arbitrarily adjust the high and low audio in the music to call up the desired effect at any time. Model: WED-4 Channel: 2 Mono+1 stereo Channel equalization: 2 Band Effector: 88 Main output: 1 Stere Phantom power supply: 48V DC USB Player: Size: 180x140x42mm Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. Material:ABS colour:Black Voltage: AC110V Package Contents: 1 x host 1 x US plug 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.