Features:
Scroll through long documents or web pages faster and easier with this wheel, same as using your mouse, enjoy unique scrolling experience.
It can be used on devices like smart phones, pads, and TV box with BT function; and for those PC or TV box without BT support, you can use 2.4GHz USB receiver.
Supports multi-finger functions, a single finger click as left mouse click, two-finger click as the right mouse click, double finger drag as the rolling screen.
Large compatibility, suitable for Windows, for Mac OS, Linux, Smart TV, and Android system.
Mini size, easy to carry. With 2 levels brightness backlight, you can use it at night.

Note: BT connection supports Windows 8 6.0 and above.

Specifications:
Brand Name: Rii
Product No.: i4
Product Name: Wireless Keyboard
Connect Port: USB2.0 or above
Processor (MCU): TLSR8267F512ET48
Transmit Mode: BT4.0 + (RF) 2.4GHz Wireless Technology
Power Supply: 700mAh
Working Current: 68mA
Sleeping Current: 130uA
Working Time: 10 Hours (back light on); 46 Hours (back light off)
Item Size: 15.6*9*1.6cm / 6.14*3.54*0.63in
Item Weight: 127.1g / 4.48oz
Package Size: 18*10.5*2.5cm / 7.10*4.13*0.98in
Package Weight: 184.7g / 6.51oz
Color: Black

Packing List:
1 * Rii i4 Wireless Keyboard
1 * Charging Cable
1 * User Manual (English)