Features:
92 keys, 2.4GHz wireless Keyboard with Multi-Touch Touchpad.
For Raspberry Pi 3: shift+2, get "" ; shift+' , get @; shift+3, get ¡ê. Other brands (include logitech) occur too.
Built-in high sensitive smart touchpad with 360-degree flip design. 
Mini QWERTY keyboard with multimedia control keys and PC gaming control keys. 
Auto sleep and auto wake mode. 
Innovative shape, portable, elegant. 
The handheld design is easy to carry and operate. 
Build-in removable rechargeable Li-ion battery that has longer standby time.

Specification:
Operating Range: 25 Ft.
Operational voltage: 3.3V 
Charge Voltage: 4.4V ~ 5.25V 
Power consumption: 55mA(on), 1mA(sleep) 
Color: Black 
Battery Type: Built-in lithium-ion battery

Kindly Note
1. Keyboard will go into sleep mode after 3 minutes of non-use to conserve battery power.
2. Windows 7 OS will take several minutes upon first use to install the driver (included on USB receiver)
3. This version does not include a laser pointer or a backlight keyboard
4. Not compatible with Samsung Smart TV
5. The Power Light will turn off once the keyboard is fully charged.
6. Depending on the OS you are using, you may need to re-sync the keyboard and dongle if the keyboard doesn't connect after 5 minutes.

Package including:
1 * Wireless keyboard 
1 * Wireless receiver 
1 * Charging data cable 
1 * User manual