Important Notes: The mouse shown in photos 5 and 6 is a "personal item" and is an example of the same model. The product for sale is unused and unopened. It is also a genuine product that supports Logi Options+ (Japanese version). The M720 Triathlon buttons are customizable! - Customization Method Using the official Logitech software Logi Options+, you can configure the following: - Assign shortcut keys and functions to each button - Switch profiles for each app (e.g., "Back" in Chrome, "Ctrl+Z" in Photoshop) - Assign up to 5 actions to the gesture button (press and move up, down, left, or right) ☆ Body Size Height: 115mm Width: 74mm Depth: 45mm Weight (including battery): 135g, including one AA battery Unifying Receiver Height: 18.7mm Width: 14.4mm Depth: 6.1mm Weight: 1.8g Technical Specifications ☆ Sensor Technology High-precision optical tracking DPI (min / max): 1000± Number of buttons: 8 Scrolling Ultra-fast scrolling Scroll wheel: Yes (rubber) Tilt wheel: Yes (with middle click) ☆ Battery Battery life: Approximately 24 months Battery details: 1 AA battery (included) ☆ Connectivity Connection type: 2.4GHz wireless connection and Bluetooth Low Energy technology Wireless range: 10 meters Easy-Switch, 3 channels Customization app Supported by Logi Options+ (Windows/macOS) For Windows/macOS (available for download at logicool.co.jp/optionsplus) ☆ System Requirements Unifying Receiver Required: USB port Windows 10, 11 or later macOS 10.5 or later ChromeOS Linux® kernel 2.6+ or later Bluetooth Required: Bluetooth Low Energy technology Windows 10, 11 or later macOS 10.5 or later ChromeOS Linux® kernel 2.6+ or later Android 5.0 or later