Dreamlink 3 Colour backlit 2.4GHz Mini Wireless Keyboard and Mouse Wireless Touchpad Rechargeable Combos for PC Pad Android TV Box and more--- Features TOP QUALITY: Highly sensitive smart touchpad, frosted, made of skin-friendly material as well as sweat proof. COMPACT BUT POWERFUL: Mini size with full QWERTY keyboard, 360-degree flip design, with function buttons, multi-media control keys, scroll buttons, and a track pad. EASY TO USE: No need to install software, with the USB Receiver at the back of the keyboard, plug and play, suitable for input text, browse the internet and play games. WIDE COMPATIBLILITY: Perfect combo, great for PC, Pad, Android TV Box, TV Box, for Xbox 360, for PS3, HTPC/IPTV BUILT-IN LITHIUM BATTERY: Rechargeable and removable. Auto-sleep after 3 minutes without any operating and press any key to wake up mini wireless keyboard. Product parameters The wireless remote-control distance: up to 15 meters (from the direction of signal interference and restrictions) Frequency range: 2.403GHZ ~ 2.480GHZ Working voltage: 3.3V Charge voltage: 4.4V ~ 5.25V Mode: GFSK Channel: 78 channels Frequency tolerance: + /-30PPM Product volume: 16 * 11 * 3cm Product volume weight: 105g Product Weight: 200g (with packing)