Type: Wireless Keyboard & Mouse Combo Light and Fully Portable Ultra Thin Wireless Frequency: 2.4 Ghz, Compact size & fashionable design Keyboard can be auto into sleep when idle, Mouse has strong adaptive surface ability Infrared AVL technology For Mouse, more accurate, more fluent Adopting frequency hopping transmission technology, it can support 32 equipments without to disturb each other. General Type: Wireless Keyboard & Mouse Combo Light and Fully Portable Ultra Thin Wireless Frequency: 2.4 Ghz Keyboard Battery: 2 * AAA batteries (not included) Mouse Battery: 1 * AAA batteries (not included) Compact size & fashionable design The keyboard can be auto into sleep when idle Infrared AVL technology For Mouse, more accurate, more fluent. When put off the battery, the mouse can release the code matching. Mouse has strong adaptive surface ability Adopting frequency hopping transmission technology, in one office it can support 32 equipments without to disturb each other. Brand other SKU OT776EL0FR0VWNAFAMZ-241804