Folding Bluetooth Keyboard, Arteck Portable Folding Bluetooth Keyboard Mini Wireless Keyboard for iOS iPad Air, iPad Mini, Android, MacOS, Windows Tablets Smartphone Built in Rechargeable Battery 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: Arteck Foldable Bluetooth Keyboard, USB charging cable, welcome guide, our 24-month warranty and friendly customer service.