Feature: 1. Mini audio mixer with 4 channels input and 1 channel output designed for mixing multiple line-level signals together. 2. Each channel has independent control knob to adjust volume, very flexible and simple to operate. 3. Ultra low noise, providing you with the highest sonic quality even at maximum output level. 4. 5V low voltage power supply design, can be powered by computer or 5V power bank through the provided power cable. 5. Mini size design, and the metal housing adopts black matte spray coating processing, very delicate and exquisite. Specification: Features: Mini audio mixer with 4 channels input and 1 channel output designed for mixing multiple line-level signals together. Each channel has independent control knob to adjust volume, very flexible and simple to operate. Ultra low noise, providing you with the highest sonic quality even at maximum output level. 5V low voltage power supply design, can be powered by computer or 5V power bank through the provided power cable. Mini size design, and the metal housing adopts black matte spray coating processing, very delicate and exquisite. Specifications: Model: AMX04 Color: Black Material: Metal Power Supply: 5V 1A Connector: 6.35mm(1/4 inch) interface Item Size: 11.3 * 7.3 * 4cm/ 4.4 * 2.9 * 1.6in Item Weight: 385g/ 13.6oz Package Size: 17.5 * 13.5 * 10cm/ 6.9 * 5.3in Package Weight: 510g/ 18oz Packing List: 1 * Mixer 1 * USB Cable Package List: 1 * Mixer 1 * USB Cable