Keep listening whatever the weather with the MDR-AS600BT in-ear Bluetooth headphones. Arc supports, coupled with the band, keep them securely in place so that you can listen slip-free for hours on the go, whether you’re running, cycling or rowing. Connect wirelessly to selected smartphones with One-touch listening via NFC. The Sony MDR-AS600BT allow you to connect wirelessly to selected smartphones with One-touch listening via NFC. If your phone doesn't feature NFC you can connect via Bluetooth. So buy this Sony MDR-AS600BT Sweat & Water Resistant Bluetooth® Sports Earphones with 8.5 hrs battery life Was £60.00 Now £42.00.