Package included: 1 x Wireless Keyboard 1 x wireless mouse 1 x Nano Receiver( stored in the receiver slot at the bottom of the keyboard) Stable Connection: 2.4 GHz wireless provides a powerful, reliable connection up to 10m. Plug & Play, One small Nano receiver connects both the mouse and keyboard to your computer. Just plug it into a USB port and you’re ready to go Rechargeable convenience: Power required 2 x AA batteries for each mouse and keyboard (Not include)The Nano Receiver is stored in the keyboard or mouse battery compartment(Next to battery slot). Unique Keyboard Design: Twelve F1-F12 keys, Instantly access your movies, music, internet, e-mail, volume, play/pause and more. Ideal for productive work and PC gaming. Highly Efficient: 3 adjustable DPI levels (800/1200/1600). Great optical sensor provides precise track movements. You also choose faster or slower at your own discretion. Broad Compatibility: Widely compatible with OS, Windows XP Windows Vista or Windows 7 Windows 8 Windows 10 system, Works with Mac MacBook Laptop Notebook Desktop PC Computer