24-bit/192kHz high resolution USB DAC and portable headphone amplifier that is built with precision audiophile components, a best-in-class 600 ohm headphone amplifier and aptX technology for Bluetooth, and designed to reproduce high-fidelity audio with minimum distortion and noise. It is built on the flagship Cirrus Logic CS4398 Digital-Analogue Converter (DAC), with an impressively high 120dB signal-to-noise ratio (SNR) that supports sample rates of up to 24-bit/192kHz resolution. A best-in-class Texas Instrument TI6120A2 headphone amplifier enables you to power any of the headphones available in the market, providing clarity, details and a total harmonic distortion value plus noise (THD+N) of <0.005%. Its dual gain switch also allows user to match the headphones to the correct impedance from the unit, providing flexibility in listening to music at the most optimal playback volume. The DAC/amplifier supports virtual 7.1 channel audio input signals to deliver realistic gaming effects and audio cues with near-perfect accuracy and positioning via headphones, as well as asynchronous mode which is superior to other USB data transfer modes. The unit records via built-in dual microphones with auto-orientation sensor that reacts to landscape or portrait orientation, allowing stereo recording to smartphones or tablets, and also features CrystalVoice Technology, a suite of audio recording enhancements that reduces noise and provides for clear calls and voice recordings, be it from mobile phones or via Skype conferencing. Communication profiles such as A2DP, HFP and AVRCP are supported for voice calls. Incorporated into the unit is a SB-Axx1 multi-core processor, designed to improve audio experiences, such as increasing the depth and spatial width of the audio, which also saves all of the audio EQ settings. The DAC/amplifier is equipped with a 3200mAh battery, which offers up to 8 hours of playback, even when using the Bluetooth connectivity option, and also allows Android users to charge their smart phones while on the go. It comes supplied with microUSB cable, desk stand, two elastic bands and mini TOSLINK cable. Dimensions: 110 x 74 x 22 mm.