Description: 【Multi Channel Mixing Capability】: This 4 channel audio mixer has four independent channels and can mix and process four audio signals simultaneously. This means you can connect multiple audio sources (such as microphones, instruments, audio players, etc.) to the mixer for more complex audio mixing and adjustments. 【Precise Audio Controls】: The mini audio mixer is equipped with independent volume control knobs and tone control knobs, allowing you to precisely adjust the volume and tone of each channel. This way, you can balance the volume of each audio signal as needed and adjust the tone to get the desired sound effect. 【Durable and Reliable】: This portable mixer is built with high quality pp materials and workmanship for durability and reliability. It can withstand long term use and frequent movement. 【Low Noise】: Stereo dispenser, highest sound quality, low noise operability, provides excellent audio sounding performance. 【Wide Use】: 4 channel audio sound mixer, suitable for smartphones, computers, power amplifiers, speakers, musical instruments, etc. Specification: Line input Form: 6.5mm mono interface Impedance: at least 4.7kΩ Maximum input level: +16dBu Line output Form: 6.5mm mono interface Impedance: about 80Ω Maximum input volume: +16dBu power supply External power supply device: 12V/150mAh Power consumption: 70mAh Size Chart: 10.36cmx5.72cmx3.2cm/4.08inchx2.25inchx1.26inch   Package Includes: 1 Mini Audio Mixer 1 US Adapter Note: Please allow slightly errors due to manual measurement and different monitors.