Features: ?Plug & Play Tiny wireless receiver conveniently slots into your computer's USB port, taking up minimal space ? sleep mode Makes it possible to save the maximum amount of electricity ? Soft silent clicking is perfect for work or entertainment in a quiet environment ? Three responsive buttons and a scroll wheel for responsive tracking ?Works with Windows7/8/10/XP, Vista, Mac OS X 10.4 or later ?Offer one year warranty for free, you can buy it without any worries Note: Please open the battery cover and take out the USB receiver, and then plug into the USB port of computer 1*AA battery is not included Specifications: Battery size: AA Number Of Batteries Required: 1 Interface(s): Alkaline Handedness: Ambidextrous Interface(s): USB 2.0 Warranty: 1 year Brand Compatibility: Universal Model Compatibility: PC, Laptop, Windows devices Computer Connectivity: Windows System Requirements: Windows XP, Windows 7, Windows Vista, Windows 8, Windows 10, Windows 2000, Mac OS X 10.4 or later Number of Buttons: 3 Mouse Operation: Button(s) with scroll wheel Package Include: 1 x 2.4G Wireless Mouse 1 x USB nano Receiver (under the battery cover) 1 x User Manual Warranty: Every product includes 12-month warranty. Please buy with confidence and don’t hesitate to contact us if having any question, we’ll get to you within 24 hours