Headphone amplifier that turns listening to music into a true audio experience. It is ideal for connecting headphones when using a PC or other audio devices with USB connection. It includes DAC 96K/44.1KHz and 16/24-bit converters, has an output of 30 mW, headphone impedance of 16 ~ 300 and a frequency response of 5Hz ~ 45kHz. It connects via USB 2.0 input and output jack for headphones. Has controls for Vol+, Vol-, Power, Mic and Mute, built-in microphone for recording and supports external microphones. The amplifier supports FLAC, WAV, AIFF and ALAC formats. Dimensions: 61.3 x 44 x 11.8 mm. Weight: 37.5 g. Colour: Silver.