Features: 1.Adjustable DPI Sensitivity: Wireless mouse with optical design, precise control, 1600/1200/800 3 levels adjustable DPI sensitivity, light touch design, eliminate noise interference. 2.33ft Effective Range: 2.4 GHz wireless mouse provides a powerful and reliable wireless connection with effective range up to 33ft,universal,suitable for office,home,travel,business meeting. 3.Symmetrical Design: Ergonomic mouse with good glossy surfaces coating technology to give you a comfortable and cool touch, symmetrical design for left and right hand, suitable for everyone. 4.Battery Powered: This mobile mouse will automatically sleep after 5 minutes of inactivity, no need to change batteries frequently, smart power saving feature, it can be woken up by clicking any button. Powered by only 2 AAA batteries (not included). 5.Arc Design: The mouse has a streamlined arc and thumb rest that helps reduce the stress caused by prolonged mouse use. Side dimples help reduce slippage and maximize your experience. specification:Item Type: Cute Rabbit Wireless Mouse Material: ABS Product Size: Approx. 94 x 62 x 36mm / 3.7 x 2.4 x 1.4in (Manual Measurement, There May Be 2mm Errors) Battery: 2xAAA (Battery Not Included) Mouse Frequency: 2402MHz-2480MHz Mouse Channels: 40 (Automatic Frequency Hopping) Working Distance: Approx. 10meter / 32.8ft Sensing System: Fiber Resolution: 1200DPI Number of Keys: 3 Keys Support System: For Windows XP/for Vista/7/8/10/11 PackageList: 1 x Mouse (Battery Not Included) 1 x Receiver 1 x Sticker 1 x User Manual 1 x Plastic Box NoteManual Measurement, There May Be 2mm Errors