Kmashi K-902 Stereo Wireless Bluetooth Speaker with Charging Cradle Dock with Built-in 2000mah Rechargeable Extended External Battery Bluetooth speaker function: Designed with dual speakers to get loud clear sound, and the bass as well. Quick and easy Bluetooth pairing allows you to enjoy the wonderful music freely Dock station function: Support to place the tablets or the smartphones both portrait and landscape position. Adopt best angle of 17 degrees for viewing Compatible with iPhone 6 Plus 5S 4S, iPad 3 1 Mini Air 2, Kindle Fire HD+, Samsung Galaxy Note 4 S5 S4, Google Nexus 7 10, HTC One X and other 5V input devices (Cable sold separately) built-in 2000mah external battery The switches of Bluetooth and charging function are distributed in two different positions, so the device can only charge or play music separately, not both at the same time Package includes: S902 charging dock with bluetooth speaker., mini USB charging cable, 3.5mm jack audio cable, user manual