The E2 Genuine Microsoft Sculpt Comfort Bluetooth Mouse 1557 is a sleek black wireless mouse that offers a comfortable and ergonomic design for extended use. With Bluetooth connectivity and a USB receiver included, this mouse allows for seamless and convenient pairing with your devices. The Sculpt Comfort mouse features a 4-way scrolling wheel and a BlueTrack tracking method for precise and smooth cursor movement. With only 3 buttons including a scroll wheel button, this mouse is easy to use and navigate for everyday computing tasks. The Microsoft brand ensures reliability and quality in this product.