Units for the iPad series are popular. Versions for desktop computers, laptops, smartphones and other tablet PCs are likewise available. Releases are compatible with Android OS, Windows and iOS.

66-key foldable unit

BOW Technology Co. Ltd
BOW offers the 66-key foldable HB022 model that suits Android, iOS and Windows devices. The 6.5mm-thick universal Bluetooth 3.0 keyboard comes with a protective case, which doubles as a stand. The ABS keys are UV-coated to make the silk-screened prints last longer. The unit has an aluminum base, adopts GFSK modulation and runs on 110mA lithium battery. It measures 145x84x14mm, weighs 190g, and meets BQB, CE, FCC and RoHS. OEM and ODM orders are welcome.

For 10.1in tablet PCs

E-pro Electronic Technology (Hong Kong) Ltd
Designed for 10.1in tablet PCs, E-pro's model BK0207 folding Bluetooth 3.0 keyboard boasts an operating range of up to 10m, GFSK modulation and MICR interface. The device has a built-in rechargeable 110mA lithium battery that allows continuous usage for at least 44 hours. It also comes with a detachable magnetic case that can be used as a stand. The 247x150x6.5mm unit operates on 3 to 4.2V at <2.5mA, and complies with CE, FCC and RoHS.

Rotates 360 degrees

Flyingoods Co. Ltd
Flyingoods' model SW-Z66 Bluetooth 3.0 keyboard for iPad Air rotates 360 degrees and connects automatically to devices. It has a water- and dust-resistant housing with a baked piano lacquer finish in blue, pink, blue or silver. The unit runs on a rechargeable 180mA lithium battery with an Airoha chipset. The model also allows silent keystrokes and has a one-touch homescreen key for easy access to different applications.

Adjustable 7-color backlight

Shenzhen Bluesolids Technology Co. Ltd
The BST-F5 model from Shenzhen Bluesolids suits iPad Air and features a 7-color backlight with adjustable brightness. The Bluetooth 3.0 keyboard allows auto-connecting within 10m and runs on a rechargeable lithium battery. It also comes with an energy-saving sleep mode and a homescreen key to access various applications. The 24.2x17.5x1cm unit is water- and dust-resistant.

For various personal devices

Shenzhen DZH Industrial Co. Ltd
Shenzhen DZH's model C201 multichannel Bluetooth 3.0 keyboard can be used with desktop computers, laptops, tablet PCs and smartphones. It is compatible with Windows, Android and iOS, and supports multiple device memory connection. The ultrathin unit measures 287.2x125.4x11.8mm and features a built-in high-precision touch mouse.

Silicone Bluetooth 3.0 keyboard

Shenzhen Good Products Electronic Co. Ltd
The BKU7 model from Shenzhen Good comes with a folding PU leather protective case and is suitable as a gift item. The silicone Bluetooth 3.0 keyboard is designed for 7in tablet PCs and has an operating range of 10m. It incorporates a 430mA lithium battery that enables uninterrupted usage for up to 90 hours. The unit comes with LED indicators, supports plug-and-play, allows quiet keystrokes, and is water- and dust-resistant. Models for iPad 2 and 3 are also available.