1. Ultra-thin design, the main thickness of only 6.7mm 2. 78 button design, with seven multimedia keys 3. Appearance,fashion, very fine 4. With power switch to turn off the power when not in use,saving power 5. Powered by 2 x AAA batteries (not included) 6. Bluetooth version: V3.0 7. Operating distance: 10m 8. Dimensions: 28.5x12.0x1.8cm 9. Weight: 278g 10. Compatible system: - Windows compatible computer operating systems, such as windows 98, windows 2000, NT, XP, Vista, Win7 so, without driving, as long as Bluetooth can be installed directly - Compatible with Mac os operating system,iPad, Phone OS 4.0 does not need to install any drivers,can be used directly

http://olla.gr/wb-8022-ultra-thin-wireless-bluetooth-keyboard-for-ipad-samsung-huawei-xiaomi-tablet-pcs-or-smartphones-german-keys-silver/