The Logitech M510 Wireless Mouse with Unifying USB Receiver is a sleek black optical mouse with 7 buttons and a maximum DPI of 1000. It offers wireless connectivity options including Bluetooth and USB, making it versatile for various devices. The on/off switch feature adds convenience to its design, while its unit dimensions of 6.4 inches in length, 8.8 inches in height, and 3.6 inches in width ensure a comfortable fit for most users. This Logitech mouse is a reliable and efficient choice for those seeking a high-quality wireless accessory for their computer or tablet.