4 Channel Mini Audio Line 4 In 1 Out Stereo Mixer Low Noise DC 5V DJ Microphone Sound Mixer Headphone Amplifier for PC Mixer, 3.5mm Input,

[4 in 1 out] Stereo 1 out 4 in. The mic mixer can be connected to 4 sound inputs at the same time, each track has an independent volume adjustment knob, and can output through headphones and speakers. [Multi-Source Mixing] A small microphone mixer extender that is easy to carry and operate, allowing you to mix multiple sources without limit. Beautiful and dynamic sound from a new rail-to-rail operational amplifier. [Compatible Devices] The condenser microphone mixer can be amplified by 4 times, making it a great way to listen to music and mix multiple sound sources including smartphones, tablets, computers, MP3 players, etc. [Adjustable Volume] The mixer supports 4 condenser microphones working at the same time, and the volume can be adjusted individually. The total output of the mix is connected to the microphone input of your sound card or computer. [3.5mm Sound Interface] The 3.5mm interface of this microphone mixer extender board comes with bias voltage, allowing you to connect it to common electret microphones, condenser microphones, etc. with plug and play. Specification: Item Type: Condenser Microphone Mixer Material: Aluminum Alloy Voltage: DC 5V Audio Input Interface: 1 x 3.5mm/0.1in Sound Output Interface: 4 x 3.5mm/0.1in Package List: 1 x Condenser Microphone Mixer 1 x Power Cable 1 x Sound Cable Note: If you experience noise when using this USB to DC power cable, please use this 5V power adapter.