Item Type: Headphone Amplifier <br>Material: Iron Shell <br>Input: <br>Type: 1/4 Inch TS Connector, Stereo <br>Impedance: 100kΩ <br>Maximum Input Level: +15dBu <br>Headphone Output: <br>Type: 1/4 Inch TS Connector, Stereo <br>Impedance: 80kΩ <br>Maximum Input Level: 40mW In 100Ω <br>Voltage: 100-240V1、PROVIDES MAXIMUM FLEXIBILITY: Mini Headphone Amplifier is designed for use with all types of headphones, offering maximum flexibility. <br>2、ULTRA LOW NOISE: 4 channel stereo headphone amplifier operates with the ultra low noise 4580 to ensure excellent sound performance. <br>3、INDEPENDENT OUTPUT LEVEL: Headphone amp amplifier utilizes 4 channels to set independent output levels for a wide range of listening needs. <br>4、INDEPENDENT VOLUME CONTROL: Headphone amplifier achieves maximum sound quality even at maximum volume. Volume of each output channel can be controlled independently. <br>5、RANGE OF APPLICATION: 4 way headphone amplifier is an ultra compact stereo headphone amplifier for studio and stage applications.1 x <br> <br>Headphone&nbsp;Amplifier<p></p><p>1 x Instruction Manual</p><p>1 x Adapter</p><p></p>