Packed with music enriching technology, the new improved GO streams music via Bluetooth for up to 18 hours. We have re-released the updated GO with Near Field Communication for lighting fast pairing and USB phone charging to make this the ultimate wireless speaker whether you're home or away. Go brings you closer to your music with instant pairing with any phone, tablet or computer and advanced audio components to deliver clear, deep surround sound. Go's room-filling sound is sure to shock and impress, with balanced treatment of the whole spectrum of sound thanks to proprietary Digital Signal Processing technology which squeezes more detail out of digital music files, a highly efficient amp powering dual 2 inch drivers and two titanium tweeters for expert top and mid range performance and its rear Auxiliary Bass Radiator, pumping out room filling bass. Almost every modern phone or tablet has Bluetooth compatibility, and can be paired with your Go in seconds, and for any other devices you can use the 3.5mm input for fast and easy playback. Whether you're streaming music, watching a film or playing a game, you'll find a way to connect your device to the Go and hear your sound transformed! And each unit remembers up to 8 devices so you don't have to mess about reconnecting each time. From one charge the Go will play your music for 18 hours - long after the party's wound down. And if your phone or tablet can't keep up, connect it via the USB socket for on-the-Go charging. Drive units: 2 x 50mm (2") woofers, 2 x 19mm (0.75") titanium dome tweeters, 1 x rear-firing bass radiator. Connectivity: AptX Bluetooth with Near Field Communication touch pairing, 3.5mm aux, USB charging port. Battery: rechargeable lithium-ion battery with up to 18 hours battery life from a single charge. Input voltage: 100V-240V (50-60Hz). Auto Power Down After 30 minutes of inactivity. Dimensions (WxHxD) 237 x 123 x 60mm (9.3" x 4.8" x 2.4"). Weight 1.1kg (2.4lb).