ISSEC 2.4GHz M-011G Wireless Rechargeable Mouse and USB Hub(White + Blue) 2.4gHz rechargeable wireless mouse free moving in 10 meters; 2 AAA alkaline battery or 2 AAA rechargeable battery supply over 3 months working time,batteries not includ; Please note: Make sure you are using the rechargeable batteries when you try to recharge! USB charing block;Plug-and-play;USB 2.0HUB 3 Port Two buttons on the left side are to forward/backward internet page;