Freeplay have shown off their new ZipCharge power stick at Mobile World Congress in Barcelona.

The ZipCharge is designed for those on the move and provides portable power for charging your phone. There is a twist, however.

Featuring...

Freeplay - those guys with the wind-up radios - have shown off a collection of new products at Mobile World Congress in Barcelona.

The TuffCharge Solar is a neat case that you slide your iPhone into, providing plenty of extra protection whilst...