IMice G-1600 Wireless Mouse Quiet Silent Mice USB Wireless Mouse For Notebook PC Feature: 1. Silent design: Left and right click are both quiet, silent. To provide you with a quiet and comfortable environment, especially suitable for the bedroom, library, office work. 2. Wireless design: Easy to carry and conserve space. 3. Mute surface: Sleek, high-end, low-cost, very cost-effective. Specifications: 1:Item Name: Silent USB Wireless Mouse 2:Buttons: buttons 4 3:Max DPI: 1600 DPI 4:Adjustable DPI Switch: 800/1200/1600 5:Wi-Fi Range: 10M 6:Battery: 1 x AA battery (NOT including) 7:Changing Life: 10 Million Times 8:Size: 115 x 65 x 33mm 9:Support system: / Packing Included: 1:1 x Wireless Mouse 2:USB Receiver