Features :

92 key (74 standard key + 18 media key)
2.4 G wireless receiver built-in
DPI adjustable
800 mA lithium battery
Windows Multimedia Control  
With a real notebook Touchpad
Real QWERT full-function mini keyboard
Portable ， elegant ， lifestyle
Built-in detachable !#!amp!*! rechargable li-ion battery (810mA)
Specifications :

Size : 146.8 by 97.5 by 19 mm ( L × W × H )
Product weight : 111 g
Working distance : 10
Emission power : + 5
Working voltage : 3.3 V
Running current : !#!lt!*! 50 ma
Charging current : !#!lt!*! 300 ma
Sleep current : !#!lt!*! 1 ma
System Requirements :

Windows 2000 / Windows XP/Windows Vista ， Windows CE ， Windows 7， Windows 8
Linux (Debian - 3.1-9.0 ， Redhat Ubuntu 8.10 Fedora - 7.0 tested)
Android or Apple OS
Touchpad

this product was added to the innovative function.
Of the mouse wheel，when you press the Fn button with  your fingers touch anywhere in the sliding fegionk，can  facilitate the realization of the mouse wheel functions.
This human design，it can be easier for to browse the web  better，edit documents
How to connect keyboard

plug the USB dongle into a USB port on your desktop  or laptop computer
Move the power switch to ON， the computer  automatically detects the keyboard
Packages Include :

1 x Mini Wireless Keyboard
1 x 2.4G Receiver Adapter
1 x Mini USB Charging Cable
1 x Battery
1 x User Manual
Note : No retail package to save the cost and protect environment.