Mice and Trackballs Rechargeable Bluetooth mouse Features and specifications: Connection Mode: Bluetooth Bluetooth version: Bluetooth 4.0, support Bluetooth 3.0 Battery type: Built-in rechargeable battery, charge 2 hours to full. When the cursor moves slow, it needs to be charged. DPI:1000 1600 DPI mode Button quantity: 3 Size: 114 x 58 x 20 mm Product Weight: 76g Applicable system: Windows XP VISTA 7 8 10 2003 Android iOS Applicable device: Computer, smart phone, tablet, smart TV (support Bluetooth) Package included: 1 x Bluetooth 1 x USB charging cable How to pair the mouse: 1. Turn on the power, long pre the bottom button and the blue light will flash. 2. Turn on the Bluetooth setting on your device, search and pair the mouse. Product Showcase: Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.