Compact headphone amplifier that is equipped with DAC 44.1kHz-96kHz/16-24-bit converters and is ideal for connecting headphones when using a PAC or other audio devices with USB connection. It provides an output power of 30 mW, headphone impedance of 16-300 Ohm and frequency response of 5 Hz-45 kHz. It also provides low distortion levels (<0.009%). The amplifier supports FLAC, WAV, AIFF and ALAC formats and provides a USB 2.0 input and stereo audio jack output. Sound can be controlled via Vol +, Vol -, Power and Mic Mute controls. The amplifier further features a built-in microphone for recording and also supports an external microphone connection. An audio cable and USB cable (for battery charge only) are included. Signal-to-noise ratio: ≥100 dB (A weight). Stereo channel separation: >80 dB (1 mW, 16 Ohm). Dimensions: 61.3 x 44 x 11.8 mm. Weight: 37.5 g. Silver colour.