ship from Japan Interface]: USB HID specification version 1.1 compliant * Can also be used with USB 3.0/2.0 interface. Connector shape]: USB connector (A type) Wireless system:2.4GHz RF radio wave system *The ID between mouse and receiver is fixed. Communication range]: Wooden desk (non-magnetic) / radius approx. 10m Steel desk (magnetic) / radius approx. 2m Resolution: 1000 counts/inch Reading method]: Blue LED sensor method Button]: 2 buttons, wheel (scroll) button Battery performance]: Continuous operation time/approx. 62 hours, continuous standby time/approx. 2500 hours, usable days/approx. 1 month *When the mouse is operated 25% of the time while using the computer for 8 hours a day. This is a Sanwa Supply in-house test value, not a value. Please note that the performance of the product will gradually decrease with the period of use. Please understand beforehand.