Feature:1. Compact Stereo Headphone Amplifier: This ultra-compact stereo headphone amplifier is perfect for both studio and stage applications. It's designed to provide the highest audio quality even at maximum volume, ensuring an immersive listening experience.2. 8-Channel Output & 1-Channel Input: Our headphone amplifier features 8 headphone output channels and 1 input channel. This allows for multiple users to listen at the same time, making it ideal for professional recording and performance environments.3. Independent Volume Control: Each output channel on this headphone amplifier has its own independent volume control. This allows for personalized volume levels for each listener, ensuring everyone can enjoy the audio at their preferred volume.4. High-Performance Operational Amplifier: Equipped with an ultra-low noise 4580 operational amplifier, this headphone amplifier delivers outstanding performance. It ensures clear, high-quality sound that enhances your audio experience.5. Metal Shell & 6.35mm Interface: The headphone amplifier is housed in a sturdy metal shell, ensuring durability and longevity. It also features a 6.35mm stereo input and output interface, making it compatible with a wide range of audio devices. The package includes a DC 12V power adapter for easy power supply.Specification:Input: 6.35mm stereoOutput: 6.35mm stereoMaximum Impedance of Headphones: 65-80 ohmsPower Supply: DC 12V power center is negativePower Adapter: US Plug, EU Plug (optional)Product Color: BlackProduct Material: MetalProduct Size: 19.7 * 5.8 * 3.2cm/7.8 * 2.3 * 1.3inchPackage List:1 * Headphone Amplifier1 * Power Adapter