Number of keys: 4 (left/right keys, middle key scroll wheel, top key) Customizable top buttons with settings software Multiple devices: 3 Easy SwitchTm channels Power switch: with automatic sleep energy-saving technology Battery type: 1 AA battery (not included) Bluetooth low-power technology (Bluetooth 5.2) compatible receiver Wireless range: approximately 10 meters wireless range Specifications: 1 [ Small and cute ] Convenient to carry with you 2 [streamline rounded design] fits your palm. 3 [ Cross screen operation ] Through Bluetooth, you can connect a POP mouse to up to three devices, making it easy to switch with just one click.Whether you are using Windows, macOS, iPadOS, or Chrome OSTM systems, POP mice are supported. 4 [ Long Range]The battery life of the POP mouse is also about 24 months, allowing you to continuously create and chat without worry. The power saving technology of automatic hibernation makes the battery of the mouse long-lasting and durable. Package Included: 1 * Mouse 1 * Instructions     Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store