Feature:1. True Showing: 10 channel headphone amplifier makes the sound better, clear, and show the ture sound.2. High Level Sound Field: 10 channel headphone amplifier adopts high level of sound field, sound position, and detail in all aspects.3. Output Level Control: Stereo headphone amplifier is with output level control for each channel and can be independent power supply for headphones.4. Compatibility: Stereo 10 channel headphone amplifier is compatible with 3.5mm headphones and can be used with 12V power adapter.5. Compact and Portable: 10 channel headphone amplifier is compact and portable and can recharge for 10 headphones.Specification:Item Type: 10 Channel Stereo Headphone AmplifierMaterial: Aluminum AlloyDriver Chip: For NJM4556AStatic Current: 85mAGain: 12dBOutput Impedance: 16-600Input Impedance: 10K Stereo Input And Output Interface: 3.5mm.Package List:1 x Cable1 x Headphone Amplifier (Button Random)