Introducing the KitSound Impulse Compatible with Lightning devices, this stylish speaker is both mains and battery powered. Take it Anywhere For years pop stars have been playing secret gigs to exclusive crowds in tiny venues. At KS we love pop up parties and spontaneous nights out, which is why we've called our Lightning dock the KS Impulse. Thanks to its slim, lightweight design, this speaker is compact and portable, meaning you can take it anywhere and have your own impromptu party. Mains or Battery Powered As well as being battery-powered, the Impulse can be connected to the mains with a 5V 2A USB mains charger (not included), and it will even charge your device. Ultimate Connectivity For ultimate flexibility, the Impulse is not just compatible with Lightning devices. A 3.5 mm aux-in port means you can connect a wide range of other devices and listen to the music on those too. (You might want to skip past those impulsively-bought novelty records though). About KitSound We are craftspeople. We are musicians. We are KitSound and we all commit ourselves to achieving one shared goal: Bringing people closer to their music. By understanding music we stay true to its craft. Pure, rich, incredible sound. We settle for nothing less. Specifications: - Battery type: AAA x 4 - Play time: up to 16 hours (depending on batteries) - Output: 3 W - Frequency response: 90 Hz - 16 kHz - Unit size: H150 x W200 x D28 (mm).