Wireless SHARKK Samsung Galaxy Tab Bluetooth Aluminum Keyboard Case Galaxy Tab 10.1 P7510 P7500 Keyboard is made out of high quality aluminum. Built in lithium battery lets you enjoy up to 55 hours of uninterrupted work time. Charging time is only 4-5 hours. Galaxy Tab goes into the keyboard when not being used and is a great case for the Glaxy Tab in addition to keyboard. Made by SHARKK Brands. Compatible with Samsung Galaxy Tab 10.1 GT-P7510 16 GB, 32GB, WiFi (NOT compatible with Galaxy Tab 7, 8.9, 10.1v P7100 European Edition) Special function keys for music control, volume control, slideshow, home, search, etc.