Features: Professional 4-channel mixing console with bluetooth and sound card, 3.5mm headphone jack, 48V microphone power button, 1/2 independent signal indicator. USB drive support, compatible with m ost U disk, plug and play, press MODE button to turn to bluetooth mode. Three power supply methods: can be connected to a computer, power cord or power bank to get power. It supports all major apps on the market, compatible with most mobile phones, and can be used for band, work, live streaming, K songs, computer recording or entertainment. Mini body, complete functions, fast connection, you can enjoy the thrill of music. Specification: Material: Metal Size: Approx. 170x150x45 mm/6.69x5.9x1.77 inches Package Includes: 1 Piece Mixer Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you