Applicable Object : For Home office Keyboard connection : Wireless Optical Resolution : 1200dpi Mouse connection : Wireless Rated Voltage : 1.5V Wireless Frequenccy : 2400 -2480MHz Interface : USB Material : ABS Stylish and sleek ultra-thin 2.4GHz wireless desktop/laptop keyboard & mouse with scroll wheel. USB ultra NANO receiver with up to 10 metre range. Supplied with a keyboard cover to protect from dust and other particles. Uses the advanced intelligence wireless network techonology, the keyboard & the mouse do not disturb each other. Clever auto sleep mode when not in use to save battery. Inside the package: 1 x Wireless mouse requires 2 x AAA batteries (not included) 1 x Wireless keyboard requires 3 x AAA batteries (not included) 1 x cover Brand No Brand SKU OT776EL1JI4Y4NAFAMZ-237397