This is a 3 channels mixer console with sound card. It can meet user's many demands, such as media, home theater, computer audio interface, phone live broadcast, live show and so on. Features: 1. BT Function: This portable 3 channels sound controller has BT function for wireless streaming ability. It works with smart phone, computer, tablet and other devices. 2. Volume Control: The mixer supports main volume control, PC/phone/BT volume control, channel 1&2/3 volume control, effect volume control, high and low sound adjustment, input gain, effect choice. 3. 48V Phantom Power: The built in 48V phantom power is suitable for power supply to condenser microphone directly. 4. Input & Output: It has XLR microphone input, 3.5mm (1/8'') microphone jack, 3.5mm (1/8'') headphone jack, RCA (L/R) input jack and RCA (L/R) output jack. 5. Sound Card & OTG Function: With sound card, it can connect with PC directly. It has track recording and OTG function, so data transmission and output operation are more convenient. Note: 1. Due to manual measurement, the size may be slightly different. Thank you for your understanding. 2. Due to different light conditions and different monitors, item color displayed in photos may be showing slightly different from real object. Specifications: Color: Black Shell Material: ABS Channel: 3 Channels, 1 Mono + 1 Stereo Effects: 4 Scene Effect Main Out: Yes BT: Yes PC Audio Interface: Yes OTG Interface: Yes Phone Live Broadcast Interface: Yes AUX Input: Yes AUX Send: Yes 5V Condenser Mic Interface: Yes Item Size: 18*12.5*4.5cm / 7.09*4.92*1.77in Net Weight: 380g / 13.40 oz Packing Size: 21.5*15.5*6cm / 8.46*6.10*2.36in Packing Weight: 535g / 18.87oz Package List: 1 * Audio Mixer 2 * USB to Type-C Cable 1 * 3.5mm Audio Cable 1 * USB-C Adapter 1 * Micro-USB Adapter 1 * Manual ( English )