Sony’s new WF-SP900 truly wireless sports headphones – the ultimate way to listen to your music whilst exercising. The truly wireless design means you can move around freely with no constraints, and listen to your favourite tunes with the best in-ear comfort. Freedom to connect and listen for longer When connecting the WF-SP900 to your smartphone or PC via BLUETOOTH connection you can enjoy listening to music with these headphones for three hours (up to 12 hours with charging case).  …