The iFi hip-dac is a headphone amplifier that can be taken on-the-go and conjures fabulous sound for the ears. It connects via USB and includes a jack for users to insert their headphones into. Basically, it replaces the DAC and amp in a connected laptop/device, so listeners can hear hi-res "bit-perfect" music up to 384kHZ. It includes "xBass" for optional sonic adjustment of bass and carries a Lithium-polymer 2200mAh battery that can last up to 12 hours. The hip-dac measures 102mm x 70mm x 14mm and weighs 125g.