Portable Bluetooth wireless speaker with compact bass design streams music with 2x2 Watt Speaker * Bluetooth Ver. 2.1: AVRCP, A2DP / Automatic connection / One time pairing * Rechargeable lithium-ion battery through USB lasting up to 6 hours of playback time * Multifunctional buttons control playback and volume functions * Compatible with Apple iPhone 4S / 4 / 3GS / 3G / iPod Touch G4 / iPad / Mackbook / Mackbook Pro / Macbook Air / iMac / Mac Mini. Motorola Xoom / Atrix / Droid X / Droid 2 / Droid / Milestone / Backflip / CLIQ / CLIQ XT. HTC Flyer / EVO 4G / Droid Incredible / Droid Eris / Aria / Hero / HD2 / HD7 / Nexus One / Tilt 2 / Touch Pro / Desire / Imagio / Shift 4g / Thunderbolt. Samsung Galaxy Tab 10.1/ i9000 / Captivate / Fascinate / Vibrant / Epic 4G / Moment / Focus / Alias / Nexus S / Omnia II , 7 Continuum. Blackberry Playbook / Torch / Storm / Storm 2 / Bold / Bold 2 / Tour / Curve / Curve 2 / Pearl 3G T-Mobile MyTouch 4G / MyTouch 3G / G2 / G1 Nokia N900 / N8 / Nuron / N97 LG Quantum / Optimus Dell Streak / ASUS Eee Pad Transformer / ViewSonic gTablet / HP TouchPad