If you purchased a Wave Portable Air Conditioner or Wave Add-on Battery?before June 14th,?your order will ship?in early July.?If you bought?after?June 14, shipping will be in?late July. 1008Wh capacity:?Sleek clamp-on design with a large 1008Wh capacity. Enough for 3 hours of cooling or 8 hours of timed mode, mixing cooling with fan settings. Detachable design:?Detach the add-on battery when portability comes first. Carry or stow away: Weighing in at 17.4 lb, the add-on battery can be carried or stored for later use.