[ainarssems]

For the kids you could go 2 ways, get a more expensive reputable make, maybe rugged, waterproof version to last longer time, something like this:http://www.amazon.co.uk/Transcend-MP...ged+mp3+player

Or you could go for cheap disposable ones and buy large quantity and just replace if/when they fail. The ones without internal storage using SD cards and not including headphones start from £0.50 including shipping from China when you buy single unit and could be cheaper in bulk buy, you could hand them out like candy . http://www.aliexpress.com/item/New-M...rchweb201560_9