The USB Spring Speaker is a lightweight mini stereo speaker which comes in the shape of spring (derr!). It is connected with devices via 3.5mm audio input cable and charges via USB too. A single charge on its built-in Li-ion rechargeable battery will offer you 4 hours of playback time. The speaker has a maximum output of 2W x2 and it measures 51.5 cm x 25.8 cm x 63.8 cm. The USB Spring Speaker is priced at £15.

[via TechFresh]