Feature: 1. SOLAR POWERED AND BATTERY BACKUP: This bird bath waterer features both solar power and a built-in 3.7V 800mAh lithium battery backup, allowing it to operate even in low sunlight conditions. 2. MOSS PREVENTION: The water mixer creates continuous ripples in the water, helping prevent moss growth and keeping the water fresh for longer periods. 3. ATTRACTS BIRDS: The dynamic waves created by the water agitator attract birds to your garden, making it a great addition to any outdoor space. 4. PET SOLAR PANEL AND BRUSHLESS MOTORS: The bird bath waterer is equipped with PET solar panel cells and brushless motors, providing consistent and efficient power. 5. EASY TO OPERATE: Simply place the waterer in the bird bath; no wires or pipes are needed, making it easy to use and maintenance-free. Specification: Item Type: Water agitator Material: ABS Weight: Approx. 255g / 8.99oz Battery: 800mAh lithium battery Application: Water mixing Package List: 1 x Water Agitator 1 x Manual 3 x Holder 1 x Mixer