A 12 volt Lithium ion rechargeable battery powers this whisper-quiet sprayer, which requires no pumping and generates no emissions. The battery can run for up to 3.7 hours, and the sprayer's powerful 12 volt diaphragm pump can regulate pressure and output volume from low (2.5 bar) to high (4.3 bar). The 18 litre transparent tank is ergonomically formed and manufactured of UV-resistant high-density polythene. The tank includes a large opening for simple filling and fill level marks in gallons and litres. During sprayer operation, the padded backpack frame and wide shoulder straps provide extra comfort. A 50-centimetre spray wand, a nylon reinforced hose, a commercial-quality shut-off valve, and chemical-resistant gaskets and seals round out the sprayer's features. Included are a battery charger and an 80 flat spray nozzle.