* Portable Mini Cute Waterproof Design Bluetooth V.3.0 Speaker、10M 30Ft Transmission* High Definition Bluetooth compatibility with Android and iPhone tablets、 smartphones、iPhone、 Samsung、 Galaxy、 iPad、 MP3、 MP4 and other Bluetooth enabled digital players* You can even use this speaker for answering calls、 so it is ideal to have stuck in your car where you can use it as a hands-free device as there is even a built-in microphone.* Powering this magic speaker is a built in 280mAh li-battery that has a constant playing time of about 2.5 hours and a standby time of about 12 hours、 giving you ample amount of usage.