Brand: RadioShack. MPN: 260-4759. Plug-and-play convenience: The snap-in nano receiver offers hassle-free setup, allowing for quick and easy connection to your device without the need for additional drivers.   Compact and portable: The sleek mini size along with its ergonomic design makes it perfect for travel, fitting comfortably in your purse, laptop bag, or pocket for convenient portability wherever you go.   High precision DPI: With adjustable DPI settings ranging from 1000 to 1600, enjoy precise cursor control tailored to your preferences and tasks.   Enhanced productivity: Equipped with 4 customizable buttons, including a responsive scroll wheel, for efficient navigation and quick access to essential functions   Long-lasting performance: Requires only a single AA Alkaline battery (not included), ensuring reliable and uninterrupted usage, while avoiding the inconvenience of regularly having to recharge the device.