The sandberg bluetooth sports earphones connects wirelessly to a bluetooth device such as a mobile phone or tablet computer remote control your bluetooth device with the track and volume controls on the headset sandberg bluetooth sports earphones are designed to fit securely on your ears so you can play sports without your earphones falling off allows you to make hands free and wireless calls bluetooth and charging bluetooth 41 csr 8645 supports a2dp avrcp hfp hsp up to 10m wir