The Viopsec Elettra Dalia Backpack Sprayer with an integrated battery essentially has the same usage capabilities as a simple manual backpack sprayer, with the very important difference that, since there is a battery, the so-called "pumping" is done automatically without needing to use both of your hands simultaneously. 

Suitable for spraying plants and trees with a capacity of 16 liters, a 1.2m telescopic lance, a 12V battery, and a charger. The adjustable nozzle allows stages from fine mist to full spray.

It features a large filling opening, which is particularly practical, making both filling and mixing of liquids easier. The padded shoulder and back strap ensures pleasant handling and comfortable transport. The sprayer's autonomy reaches up to 4 hours.