Mice & Trackballs Portable 2.4GHz Wirele Optical Mouse 6 Buttons USB Receiver 2000 DPI Mice for Laptop Notebook PCFeature:1. Mini adapter for plug and play.2. Wirele transmiion, the longest sensing distance can reach 10-15m/32.81-49.21ft.3. Lightweight, easy to carry and store.4. Power switch for saves electricity.5. With 6 keys, including scroll wheel, forward and back buttons, easy for Internet surfing.6. Working distance of up to 10m/32.81ft.Specification:DPI: 2000 DPIPower: 2 X AA Batteries (NOT Including)Mouse Type: Wirele Optical MouseInterface: USBNet Weight: 54gGro Weight: 57gProduct Size: 100 X 65 X 35mm/3.94 X 2.56 X 1.38"Packing Size: 105 X 70 X 40mm/4.13 X 2.76 X 1.57"Color: Black, Grey, Red, BlueNotes:1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!2. Please allow 1-3mm measuring deviation due to manual measurement. 1 X Wirele Mouse1 X USB Receiver