CrazyFire Fold Up Bluetooth Keyboard,Ipad Folding Bluetooth Keyboard with Aluminium Case for iPad iPhone Android Windows Phones and Tablets(White) Folding bluetooth keyboard: folding and ergonomic bluetooth keyboard, Pocket size, sleek and slim design. Compatible 3 major operating system: iOS / Android / Windows. Works with most bluetooth supported devices. Ergonomic & durable design: Aircraft-grade aluminum alloy texture for superior durability, low-profile keys offer quiet and comfortable typing. Built-in rechargeable Li-polymer battery provides more than 60 hours of effective usage time, on a single charge. Auto power off and sleep mode function helps to conserve battery. Package contents: CrazyFire foldable bluetooth keyboard, USB charging cable, welcome guide, our 24-month warranty and friendly customer service.