MEMTEQ&reg; Universal Waterproof Bluetooth Keyboard + Magnetic Charging Cable for iOS Windows Android Tablets iPad Galaxy Tabs Microsoft Surface and Other Mobile Devices (Black) Universal Waterproof Dustproof Bluetooth 3.0 Keyboard, Ultra slim (7mm) with high quality PU leather makes it more portable, powerful and durable; the Size is 9.57*7.01*0.27 inch; Compatible with Android (Samsung, Dell, Asus Tablet or Smart phones), iOS (iPhones & iPad Air 2 / Air, iPad mini 3 / mini 2 / mini, iPad 4 / 3 / 2), and Windows (Surface & PC etc) makes it more convenient; Comfortable Quiet Keystroke; Type quietly and effortlessly on comfortable, low-profile keys; Built-in Li-ion battery; 30 days standby time, 62.5 hours continuous use, 2.5 hours fast charging; Low power consumption, auto-sleep mode saves power and ensures you get the most out of every charging; Featured Magnetic Adsorption Charging, not need Micro USB port.