ELECOM Wireless Mouse (Receiver Included), Medium Size, 3 Buttons, Silent, IR Sensor, Power Saving, Black M-IR07DRSBK

This wireless mouse features silent switches for the left and right buttons and the scroll wheel, providing a firm click feel without the annoying clicking sound, allowing for quiet use. It's an IR LED mouse that uses low-power infrared LEDs. Because it consumes less power than mice using Blue LEDs or lasers, it can be used for approximately 2.5 years without replacement. It's a wireless type that uses the 2.4GHz band and can be used within a range of approximately 10m on non-magnetic surfaces and approximately 3m on magnetic surfaces such as steel desks (according to our research). It uses a micro receiver the size of a 1-yen coin that is unobtrusive when connected to a laptop's USB port and can be carried around while still attached.