Wireless connection The Logitech M171 Wireless Optical Mouse uses wireless technology to offer you convenient and reliable control. Simply plug the tiny wireless receiver into a USB port and you're ready to start. There's no need to pair the device or install software, making it a convenient and practical choice.Up to 12 months battery lifeRunning on a single AA battery, the M171 has a long battery life of up to 12 months. This makes it a practical addition to your computing peripherals, offering quick and convenient control.