1. Auto sleep and wake-up function of the keyboard.
2. Ergonomic design, compact and light weight.
3. Can be used for PC, Notebook, Smart TV, HTPC, Android TV BOX, etc.

System requirements:
1. HID compatible device
2. USB port 
3. Windows 2000, Windows XP, Windows Vista, Windows CE, Windows 7, Windows 8, Linux(Debian-3.1, Redhat-9.0, Ubuntu-8.10, Fedora-7.0 tested),Android OS(with standard USB interface).

Sleep and Wake up:
1. Sleep mode is supported to save power and lengthen standbytime -- if there is no operation in more than 3 minutes, the the device will enter sleep mode,RF indicator on.
2. In sleep mode, one random click on the keys can wake up the device.

NOTE￡oThis item has not backlit LED￡¨the Manul may contains something about backlit setting, because this manual is a universal one for two keyboards of this model, one has backlit and the other has not, and the X1 is the one which has not backlit LED )

Specifications:
1. Brand: Rii
2. Color: Black
3. RF mode: 2.4Ghz
4. Operating distance: Up to 10 meters
5. Built-in battery capacity: 450mAH
6. Charging voltage: 4.2V ~ 5.05V
7. Charging current: ￡¼350mA
8. Sleeping Current: ￡¼1mA
9. Charging time: About 4 hours
10. Operating temperature: -10¡æ~+55¡æ
11. Battery type: Polymer Lithium-ion Battery
12. Standby time: 500~700 hrs
13. Transmission power: maximum +4dBM
14. Dimensions: 150x60x10mm

Package included:
1x Keyboard
1x USB Charging Cable
1x USB Receiver
1 x User Manual