ELECOM Wireless Ultimate Grip Medium 5 Black Mouse, Silent, Design, Size, Buttons, (M-XGM10DBSBK)

Use it quietly even in places where noise is a concern with its silent switches. Designed based on the shape of your hand, it offers even greater "comfort" in your grip. The "Silent EX-G" is a 2.4GHz wireless 5-button mouse equipped with BlueLED for comfortable operation anywhere. [Connection method] Wireless 2.4GHz band [Number of buttons] 5 buttons (including scroll wheel button) [Size] Medium, ergonomic design One of the following: AA alkaline battery, AA manganese battery, or AA nickel-metal hydride battery [Sensor] Optical sensor type (BlueLED) [Warranty period] 6 months Compatible devices: Windows PCs and Macintosh computers equipped with a USB interface.