Blue LED Mouse Bluetooth 4.0 Bluetooth SANWA SUPPLY MA-BTBL171W 5 buttons, symmetrical, white Small size: 93.4mm x 59.2mm Please check the official website for detailed specifications. There are signs of use, such as minor scratches. There are no noticeable defects, but this is a used item that has been handled by someone else, so please be aware of that. Separate AAA batteries are required, so please prepare them. I have various other items for sale, so please take a look if you'd like. I can combine items into sets! #Miyukku'sVariousItems Power supply...Battery-powered Connectivity...Wireless (Bluetooth)