It was almost obligatory for me to buy a pair of balls, so I could make the jokes that naturally stem from such a product. I purchased them from this ebay shop; the price was $25.20 for two, including postage. They came from Laos and arrived within 10 days. The parcel was a bit crushed on one side, but the products inside weren't affected.
The Mocoro balls come with a set of 4 different coloured microfibre covers. The covers zip off for easy cleaning.
Each needs 1 AA battery to work. Inserting the battery requires a screwdriver. According to the box, the battery should last for up to 5 hours. I hope this is true as replacing the battery is quite fiddly.
There is an on-off push button on the side of the ball. I was worried that this would get pressed accidentally while the balls are rolling, but this wasn't the case. The balls have a weight inside them, which causes them to jiggle and roll around in random directions. At first my balls didn't move around very much. I posted a short video here on my Instagram. (You can also hear the sound they make.) They seemed to serve more to distract the cat than anything else!
However, just as I was composing a lukewarm review in my head, one of the balls shot off down the hallway, all the way into the bedroom and collected a good amount of lint from under the bed!
Surprisingly, the Mocoro balls work!
However, you will still have to sweep your floor! Because they move around in such a random way, there's very little chance the whole floor will be covered. Plus, I haven't tried cleaning the covers yet. It may well be easier to just sweep. The Mocoro Robotic Mop Ball is more of a novelty than a useful cleaning product, but it's fun.
And, you know, balls. Teehee.