Jelly Comb Dual Modes 4.0 Bluetooth & 2.4GHz USB Nano Receiver Wireless Mouse for PC Laptop 2400 DPI Gaming Mouse Silent Mice       Product features: Wireless and Bluetooth Double Modes: 2.4G USB Nano Receiver and Bluetooth 4.0 Double Modes Design for easily to connect different devices.   High DPI movement Resolution: 3 adjustable DPI levels:1000,1600,2400 DPI,easily change the cursor sensitivity depending on your activity, meet both ordinary and gaming needs. The optical laser allows for a quick response, precise movement, and smooth tracking. You can adjust the speed of the mouse by yourself.   Silent Click Design: Noiseless click, soft touch, offers extremely comfort which can make you focus on what you do without disturbing others   Applicable system: Requires Windows XP, Vista, 7/8/10/2000 and Mac OS X 10.4 or later for operation       Specification: 3 adjustable DPI levels:1000,1600,2400 DPI Dimensions: 1.4 by 2.6 by 4.7 inches (H x W x D) Battery size: AA(not included) Interface(s): USB 2.0 Number Of Batteries Required: 1 Warranty: 1 year Model Compatibility: PC, Laptop, Windows devices System Requirements: Windows XP, Windows 7, Windows Vista, Windows 8, Windows 10, Windows 2000, Mac OS X 10.4 or later Number of Buttons: 4 Mouse Operation: Button(s) with scroll wheel     Package included: 1 x Wireless and Bluetooth Double Modes Mouse 1 x USB nano Receiver (in the battery compartment of the mouse, under the battery cover)