I purchased this new several years ago and used it a few times, but it has been stored at home since then. Please purchase only if you understand that this is a used item. Please refer to the manufacturer's instruction manual PDF below. https://direct.sanwa.co.jp/contents/torisetsu/400-MA040_torisetsu.pdf Small Mouse Mini Mouse Micro Mouse Portable Mouse Presentation Mouse Product Features ● This is a wireless mouse that you attach to your fingertip to operate. ● It uses a laser sensor for reading, allowing for smooth cursor operation. ● Even during presentations, you don't need to operate the mouse on a desk, so you can do it smoothly while looking at the screen. ● It's 2.4GHz wireless, so you can use it from a distance of about 10m. ● You can use it simply by connecting it. ● In addition to the left and right clicks of a normal mouse, it has a total of 5 buttons: scroll switch, drag switch, and back button. ● The main unit's battery is rechargeable and can be charged with the included USB cable. ● It uses a small receiver, so you can move around with it still attached to your computer. ● There is a hole in the ring part to insert the receiver, allowing you to store the receiver when not in use. Specifications ■ Color: Black ■ Interface: USB HID specification version 1.1 compliant ※ Can also be used with USB 2.0 interface. ■ Connector shape: ・Receiver, charging cable (PC connection side): USB connector (A type) ・Charging cable (Ring Mouse Plus connection side): micro USB (micro-B type) ■ Wireless method: 2.4GHz RF radio wave method ■ Communication range: Approximately 10m radius (theoretical value) ■ Resolution: Standard 1250 count/inch ■ Reading method: Laser sensor method ■ Buttons: 5 buttons ■ Size/Weight: ・Mouse/W25 x D33 x H35mm・9g ・Receiver/W12.5 x D19 x H4mm ■ Accessories: Ultra-small receiver, charging cable, instruction manual ■ Battery performance: ・Continuous operating time/about 10 hours (when the built-in battery is not degraded and fully charged) ■ Compatible models: ・Windows-equipped (DOS/V) computers ・Apple Mac series ※ Models with a USB port (A type connector) as standard. ■ Supported OS: ・Windows 7・Vista・XP ・MacOS X (10.3 or later)