1, the mixer can be a of audio sources or musical instruments at the same time mixed on a channel output. Such as electric pipes, electronic guitars, electronic drums, electronic pianos, MP3 players or cell phone music, etc. mixed and output to active speakers or mixers. 2, the mixer provides six groups of stereo mixing input, can also support mono input, input and output 6.35 interface. 3, each group of inputs with volume adjustment and mono / dual-channel conversion switch. 4, wide range of applications: mixer for most electronic musical instruments mixing, a wide range of applications. 5, easy to operate: 1/4 input and output - 6.35mm interface. Each channel has with switch button, so that the switch between mono and stereo audio input is more convenient and intuitive. 6, power supply: applicable to DC-5V power supply mode, convenient for users to use in a of occasions. For example, your charger adapter, rechargeable battery. As long as the is DC5V, 500mA or more current (except for laptop and desktop computers) can power products. [product presentation] Do you have 6 groups of musical instruments that need to be mixed and played out on one device at the same time and are troubled by the sound? A powerful mini-style 6-channel mixer can solve the problem of mixing to sound out at the same time and so on. Colour:black Material:Metal Package Contents: 1 X 6-channel stereo instrument mixer 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.