It's a duck that squirts foam about 5 feet (1.5m). Quite a fun thing actually, and the construction is not too bad. It's rechargeable and uses a small quantity of standard shampoo/detergent mixed with water to create the foam, so it's cheap to run.
They have made a decent effort to prevent water ingress to the main cavity of the duck. The water tank breather and pump air intake both go to the head of the duck, and the foam pump pushes up against a rubber seal. Water will always find a way in, but at least they have made a reasonable effort to keep that area dry.
The unit is intended for aiding in applying pre-foamed shampoo to pets, but has other uses. It is USB rechargeable and has a decent 1300mAh 18650 cell in it.
To use it, you add some shampoo or other liquid soap type product to the bottle and then top it up with about 6 times as much water. When turned on with the power button, the unit sucks the soapy water up and aerates it before giving it a final foaming up just before firing it out of the duck's mouth.
The circuitry has fairly standard lithium charge control, extra on-board protection for the lithium cell and a processor for controlling everything.
The pump is a very common foam pump as used in many automated foaming soap dispensers. It has a set of three pumping chambers - one for liquid and to bigger ones for air.
It puts out a very coarse mix of bubbly soap that then gets broken down into smaller bubbles by mesh or foam to create a thick mousse.
The disassembly of this device was very destructive due to the way the cylindrical base clips forcefully into the upper body. But then - that's the purpose of this channel. Taking things to bits so you don't have to.
Here's the Ali-X listing I bought this from (not a sponsor):-
https://vi.aliexpress.com/item/1005007159169860.html
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