This CyFi Wireless Sports Speaker is a portable wireless speaker which connects to a little transmitter plugged into your music player or phone. Look, no wires. Not only does it embrace our new cable-free world, but it will also synch up with 4 other speakers, thus supplying what surely must be the first surround sound experience on a bicycle. Colour our gob, smacked. £99.99.
Simply plug the dinky audio transmitter into your iPod, press play and let the CD-quality CyFi do its thing. The speaker itself is light enough and small enough to pop in your coat pocket, and it has a range of 30 feet… Charging for 2 hours via USB will give you over 6 hours of listening time.