World's first docking headphone amplifier, digital-to-analog convertor and battery pack transforms your smartphone into a mobile hi-fi system for the purest audiophile sound. Universally compatible with Apple, Android and Windows products including tablets, notebooks and desktops, VERZADOCK system and METALLO case (sold separately) seamlessly docks to your Samsung, iPhone and future devices. VAMP VERZA is made in Japan with precision-engineering, the finest components and lightweight metals for top-of-the-line quality that makes you stand out from the crowd. VAMP VERZA features a 150mW x 2 amplifier that delivers optimal power to drive even the most power-hungry headphones as well as the ultimate audio clarity, even at low volume levels. It features two dedicated DAC chips and uses your device's digital output via USB, micro-USB, 30-pin or lightning to bypass the stock analog output. This enables high-end headphones to sound their best as the amplifiers and DACs built into most smartphones and computers were designed to power small ear buds and the critical digital to analog conversion process often distorts faithful sound reproduction. The aircraft-grade metal exterior features the patent-pending VERZADOCK that allows you to attach your mobile device to METALLO case with a solid-feeling sliding mechanism. Tuned by V-MODA's award winning acoustic team, legendary musicians and Grammy-Award winning producers, the VAMP VERZA offers a bass boost as well as 3D mode specially tuned for home and car stereos. The optical SPDIF/Toslink digital audio output enables your mobile device to double as an audiophile-level source. Powered by a 2200 mAh battery, you can use it as a USB battery pack to charge any device or double your smartphone's battery life. VAMP VERZA is groundbreaking metal solid gear for the modern, mobile audio connoisseur.