Shop the M240 Silent Mouse, featuring 90% noise reduction, high-performance glide feet, a smooth scroll wheel, and advanced optical tracking. Enjoy up to 18 months of battery life. This Bluetooth mouse connects quickly and easily to your computer with no dongle needed. The auto-sleep feature helps save the battery, lasting up to 18 months. With 90% reduced click noise, you won't have to worry about annoying colleagues. The ambidextrous, travel-friendly design feels great in your hand, whether you're right-handed or left-handed. The sculpted, contoured shape and long battery life let you focus on what you do best. Logitech M240 Silent Bluetooth Mouse with Comfortable Shape in Graphite.