Silent click Mouse with classic design with anti-fingerprint finish offers your hand maximum support and comfort. The sturdy anti-slip rubber scroll wheel ensures that your hand will not slip when scrolling. Built-in durable 450mAh lithium rechargeable battery can last up to 500 hours after fully charged, and standby time is super long with auto sleep and wake mode. Easily recharged through the included USB cable, no need to change the battery.