Cellink Bluetooth Wireless 3-button Optical Mini Mouse w/USB Cellink BTM-5632 Bluetooth 3-button Optical Scroll Mini Mouse (Cellink) General Features: Wireless mouse Stylish Silver/Black profile Bluetooth v 1.1 compliant 2.4 GHz wireless technology Light, handy, portableand stylish Optical technology Ergonomically designed to fit right and left hand 800-dpi sensor resolution 3-button Scroll wheel (acts as third button)