Item Type: 4-Channel Line Mixer Material: Metal Colour: Black Product Size: Approx. 10.5 x 5.7 x 3.2cm / 4.1 x 2.2 x 1.2in Line Input: Impedance: 4.7 K Maximum Input Level: +16 dBu Line Output: Impedance: 80 Maximum Output Volume: +16 dBu Package List 1 x Sound Mixer 1 x Power Adaptor 1 x User Manual Precautions:1. Do not use this equipment near water.2. Only clean with dry bottom.3. Do not block any ventilation holes. Install in accordance with the manufacturer's instructions.4. Do not install near any heat sources, such as radiators, heat regulators, furnace or other equipment (including amplifiers). 1The MH400 mixer provides a costeffective solution for mixed multiline sound signal transmission, and deeply feels the value brought by MH400 2Add 4 more keyboards or electroacoustic instruments to the mix, insert the MH400 input interface, and connect the MH400 output interface to the mixer input channel to solve the lack of mixer channels 3Despite the compact size of the mixer, the sound quality is outstanding, with an ultralow noise operational amplifier circuit 4UItracompact 4channel line mixer to achieve the highest sound quality even at the maximum output level 5The ultracompact single mixer with 4channel input and 1channel output line, each input channel can be individually adjusted in volume