6V charger for Sansa Clip

I’ve just bought a charger for my Sansa Clip. The charger’s description on the box claims that it’s “compatible with all USB powered devices” and it lists the power output as 5V. Having seen this, I’d never expect that the label on the device itself will contain a different value. But it does! It says that the output is DC6V (+/-) 5%. Can I use this charger for Sansa Clip then? Is 6V within its voltage tolerance range?

Thanks for your help,

It’s probably ok, although mine does say 5v at 500ma.