The worst thing I have ever bought!!! It is specified for up to 9 kilos and the baby stopped rocking it at 6 and a half because it couldn't handle the weight. Sometimes it worked, sometimes it didn't at first, and then it stopped completely. In the first week, the ring with the hanging toys fell off. The melodies are depressing and the LED lights are not visible at all during the day. I didn't use it with batteries at all because they don't last even an hour. I bought it 4 months ago for 150 euros and honestly, it's not worth even 5.

With just batteries, you won't get any work done, as others have said. According to the manufacturer, it requires a power supply of 5.8-6v; however, it also works with a 5v charger.

The touch buttons are not very precise, while the LED it has to show what settings you have selected is very dim. Other than that, for its price, it is decent.

The baby has sat very little and is already creaking. Not at all convenient when you work with electricity and the battery unfortunately lasts less than two hours. We put in branded and very good batteries but the energy management of the relax is the worst.

Simply a lifesaver! For a baby who slept all day only in a carrier, we put her in the relax and she falls asleep in 5 minutes! :-))))

Very good, easy assembly and the child can swing relatively well. The only issue is that if it's winter and we have carpets, the child doesn't swing easily.

The child is either satisfied or not, depending on their appetite. The speeds are satisfactory.
It works with power from a USB charger and batteries, the batteries do not charge while it is plugged in, it is not like a mobile phone, you could say.
The melodies are a bit sad

The child is very good, he was calm from the first weeks, had a variety of sounds, and can be used either with batteries or with electricity.