ELECOM Wireless Mouse (Receiver Included), Medium Size, 3 Buttons, Quiet, IR Sensor, Energy-Saving, Black, M-IR07DRSBK (Set of 5)

The silent switch allows for quiet operation even in noise-sensitive areas. This quiet model features an infrared LED that lasts approximately 2.5 years without needing to be replaced. [Connection Method] Wireless 2.4 GHz (Receiver Included) [Buttons] 3 buttons (including wheel button) [Size] Medium: 59.0mm W x 99.8mm D x 39.0mm H