Most parents we deal with are looking for something that actually holds a kid's attention past day three, and the 128 tones plus 100 rhythms on this one give them enough variety to keep poking around.
It's a 30-key standard layout with voice register form C4 to C9, which is wider than you'd expect for this size—output is capped at ≤3W so it won't blast the neighbors, and the whole thing runs on 5V 1A via a simple USB-style power supply.

20 built-in demo songs are loaded in, and what it does is let kids play along without needing to read sheet music first; basically it's more about exploration than structured lessons. MDF body with gloss paint takes the usual drops and spills fine, but we should flag there's no keyboard cover included (usually 2-4 weeks if you want that custom).

Tones and rhythms are fine for general play, but it's not suited for anything like performnce work or serious practice—the sensitivity is more toy-grade than instrument-grade, which is honestly fine for the 3-8 age bracket most buyers have in mind.

Custom colors beyond black, white, or pink are doable, but minimums usually run 100-200 units and lead time stretches to 30 days or so; our company have standard stock in the three colors, any MOQ under 50 can ship within a week if we've got the batch ready. Gross weight hits 9 kg per unit, so factor that into freight costs (net is 8 kg, packing adds the rest).
CE cert is on file, and our company can provide a COA—tell your compliance people it's a 30-key instrument with no hazardous levels in the paint, but that's about as detailed as teh paperwork gets.