2.4G Office USB Wireless Mouse 6 Buttons 1600DPI Adjustable For Notebook Desktop
(Type: 2.4 GHz Wireless. Wireless distance: 10m. 1 x USB Receiver. 3): 8 minutes or so, go to level 3 sleep, the light goes out. Power Source: 2 PCS AAA Battery (Not included). 1): Three seconds into the first sleep light flashing continuously.