Usb retractable cable ideal for travel or home office optical sensor technology comfortable plug and play the ergonomically designed targus 3 button usb optical mouse with retractable usb cord is the perfect device for both left handed and right handed users whilst being small enough for travel and big enough for day to day desktop operations the 1m usb cable adjusts to perfect length for ease of use and the ultra compact mini size makes the mouse fit comfortably in