It’s a straightforward and lightweight add-on, just plug it into your handheld and you’re away. It’s got a frequency spectrum of 87.5MHz~108mhz, it doesn’t require any extra power (it gets it from your DS) and has a bright LCD display showing what you are tuned to.
And best of all it’s cheap, priced at $14, which is around £7. Just about the cheapest DS add-on you can buy.
Find out more at the Brando website