Specifications:Model number: SW-frequency: 2.420GHz~2.480GHzColor: White/Pink/Black/Blue,Website:http://www.sungi.net, ectMaterial: ABS Silicone(Tail)Weight: 60gInterface : USB 2.0DPI: 1200Battery: 1xAAA battery(not include)Key life: 3,000,000Tracking method: OpticalNumbers of button: 3DWorking range: 10mHand orientation: Both handsRF operation channel: 16, auto frequency hoppingApplication: Supports for Windows 2000/xp/vista/7, Android, Mac OS etcPacking: Normally white color box/OEM packing also providedOEM service: YESBuilt-In mouse memory, no recording is needed after battery replacement.Intelligent connectivity, no need to code, plug-and play.Ergonomically designed, comfort grip.Many dormant class control and more power-saving hibernation connectionless.Package and Delivery:One USB receiver and one wireless mouse in one white color box or a crystal box; 50pcs small packing box in one cartonShip via DHL/FEDEX/UPS/EMS/TNE, ect,small order ship out within 1-3 working days after deposit;mass order ship out within 3-7 working days after deposit;OEM order ship out within 7-15 working days after deposit(depend on)Cautions:Operation distance is closely related to the environment. Battery life may be different for personal habit of using mouse. In case of mouse failure, please check battery power and replace it as necessary. TheInstruction for use1. Open the battery cover2. Take out the USB receiver form the battery compartment, plus it into a USB host on your PC.3. Insert 1 piece AAA battery with correct polarity ( /-) as indicated.4. Close the battery cover.5. Open the power switch. Don't need to pairing, plug and play.6. If you do not use this mouse, nano receiver can be placed at beside of the battery compartment.