Description: 【High quality materials】: High quality Mini Audio Mixer is made of high quality PP materials, 5V power supply can be enjoyed anytime and anywhere, USB charging head, power bank, and computer, all can be directly powered. 【Features】: Portable Small Mixer is mini portable, low noise, high sound quality, strong configuration, small but powerful, and durable. 【Independent Control】: 4 Channel Audio Mixer is independently controlled, each channel has an independent volume control, all channels are independent and will not affect each other. 【Function】: The multifunctional Portable Mixer has 4 3.5mm auxiliary inputs and 1 3.5mm auxiliary output, which can mix the signals of CD players, musical instruments portable recording equipment, video playback equipment, and other equipment. 【Wide Applications】: 4 channel mini stereo mixer for extended control tuning, mixing instruments, CD players, tape players, computers, mobile phones, etc. Specification: Output Line Input Type: 3.5mm TRS Connector type: 3.5mm TRS Connector impedance: min.4.7 kΩ Impedance: min.approx.80 0 Maximum output level: +16 dBu Maximum input level: +16 dBu Size Chart: 8.5cmx5.6cmx4.2cm/3.35inchx2.20inchx1.65inch Package Includes: 1 4 Channel Audio Mixer 1 US Adapter Note: Please allow slightly errors due to manual measurement and different monitors.