The symmetrical curve design allows you to use it with both hands and provides a more comfortable experience than a touchpad. Paired with laptops: This mouse is compatible with multiple systems, and its execution can meet your needs no matter which computer you use. Durable battery life: continuous use for up to 12 months *, 1 AA battery. To save power, the back switch can be turned off when not in use. Easy pairing for immediate use: The Universal Serial Bus receiver has a compact appearance and can stay in the Universal Serial Bus port, making it easy to move around with laptops and reducing the possibility of loss. When not in use, it can be stored in the mouse battery compartment. Reliable wireless technology: Logitech 2.4GHz wireless technology enables powerful and reliable wireless connections without interference and frame drops