PRODUCT DESCRIPTION High definition Bluetooth 3.0 audio wireless connectivity with seamless streaming and 6 hours of playtime. Universal compatibility with Android and iPhone, iPad, tablets, smartphones, iPods, MP3, MP4 and other Bluetooth digital device. Easy access to Handfree Talking/Volume up/Volume down/fast forward (skip)/Backward/Pause/Play/Power buttons. Water resistant loud speaker and built-in mic for both outdoor and indoor use. PRODUCT DESCRIPTION Bluetooth 3.0+EDR Playback time: 6 hours Charging time: 3 hours Connection range: 10 meter Transmitting frequency: 2.4GHz Battery: 3.7V 400mAh lithium battery Unit weight: 45g Dimension : 2.25?(w/ suction cup) x 3.25?(diameter) What's in the box User manual SB510 Water Resistant Bluetooth Speaker USB charging cable(AC wall charger not included)