Truvox Valet Battery BackpackTruvox Valet Battery Backpack offers great performance and provides access to confined areas. The Valet Battery Backpack offers convenient vacuuming to tackle awkward spaces that need cleaning, including train, carriages, cinemas, and stairwells. Without the need for a power cable means you can freely move around to get the vacuuming done quickly before moving onto the next job. The Lithium ion battery provides 55 minute runtime. Plus, the quick