Capacity: 200ml water tank that can last for up to 3.5 hours at a time. Fan: Grab yourself a mini USB fan. Portable: Features a carry handle for easy transportation. Range: Reaches up to 2 square metres - effectively cools down a room! Size: Measures 151mm (L) x 145mm (W) x 136mm (H). | Mini Cooling USB Fan | Wowcher