Feature: 1. DUAL INPUTS AND OUTPUTS: Stereo mixer can be connected to two different sound sources at the same time, mixing the output, suitable for a variety of application scenarios. 2. HIGH CURRENT OP AMPS: 2 way sound mixer adopts imported NJM4580 and NJM4556A high current op amps, low noise and stable performance. 3. VOLUME CONTROL: Portable sound mixer can control the volume by adjusting the input, easy to operate and adjust. 4. MULTIPLE INTERFACES: 2 in 2 out sound mixer supports 3.5mm stereo socket, convenient to connect multiple devices. 5. HIGH COMPATIBILITY: Stereo sound mixer can be connected to two headphones or two amplifiers at the same time to meet different user needs. Specification: Item Type: 2 In 2 Out Sound Mixer Material: PCB Power Connector: 5.5X2.1 Input Voltage: DC5V-20V Current:1A (Power Supply Is Not Included, Must Be Self Matched) Static Current: 15ma Amplification Gain: 6db Input Connector: 3.5MM Connector Output Connector: 3.5MM Connector. Package List: 1 x 2 in 2 Out Sound Mixer