Vassink Ergonomic Mouse connects via 2.4GHz radiofrequency. The mouse has a vertical ergonomic design that provides comfort during work by reducing the pressure on the palm. It comes with a USB nano receiver. Also, it works best for professional and personal uses. It is equipped with 6 programmable buttons. The mouse's battery is rechargeable. It is embedded with a high optical sensor that delivers speedy performance. You also get a 12-months limited warranty. Its maximum DPI resolution is 1600. It is durable and has passed the 5 million clicks test.