Features: 1.3 in 1 Multifunction 2.4GHz Wireless connection QWERTY keyboard, touchpad, backlit. 2.Touchpad which supports multi?finger functions, Ability to type as a computer keyboard, remote control for smart TV . Built?in rechargeable lithium battery, A multi?purpose mini keyboard brings great convenience to your life. 3.The wireless mini keybaord includes a touchpad DPI adjustable functions and built?in high sensitive smart touchpad with 360?degree flip design. Enough space to finger out it. You wil enjoy more convenience and control on?screen menu easier. 4.Built?in rechargeable battery, A multi?purpose mini keyboard brings great convenience to your life. 5.The keyboard can be connected to devices that have a standard USB interface using a mini receiver. 6.The product can be used as a remote replacement. Its operational range is up to 10 meters. No matter on sofa or in car,remote your for smart tv or computer with the wireless keyboard anytime and anywhere. 7.Can be used for PC, laptop, for Android TV box, for smart TV, HTPC/IPTV, etc. specification:Item Type: Mini Wireless Keyboard Colour: Black Working Frequency: 2.4G RF Working Distance: Approx. 10meters / 32.81ft (maximum) Working Voltage: 3V Battery: 2 x AAA batteries (not included) System Requirements: For Windows 2000/XP /7/Vista/8/10/Linux (Tested on for Debian-3.1, for Redhat-9.0, for Ubuntu-8.10, for Fedora-7.0) /OS X /For Android operating system (with standard USB interface) PackageList:1 x Mini Wireless Keyboard1 x USB Receiver1 x User Manual NoteNot applicable to for Samsung Smart TV