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: AMX04Color: BlackMaterial: MetalPower Supply: 5V 1AConnector: 6.35mm(1/4 inch) interfaceItem Size: 11.3 * 7.3 * 4cm/ 4.4 * 2.9 * 1.6inItem Weight: 385g/ 13.6ozPackage Size: 17.5 * 13.5 * 10cm/ 6.9 * 5.3inPackage Weight: 510g/ 18ozPacking List:1 * Mixer1 * USB CablePackage List:1 * Mixer1 * USB Cable