– Wirelessly pair with your smartphone or tablet using Bluetooth & NFC – Up to 30 hours of battery life – Built-in microphone for taking calls and remote controls – Ear cups swivel flat for easy packingThe Sony MDR-XB650BT wireless Bluetooth headphones with NFC technology are designed to provide superb sound and powerful bass for music lovers.Listen for longer The Sony XB650 Wireless Bluetooth Headphones feature a rechargeable battery that provides up to 30 hours of listening time. Simply charge the device using a USB cable and you’re good to go. Enjoy extra bass in extra comfort with Bass Boost Bass Booster provides an acoustically-tight seal for better sound isolation and tighter bass, giving your music extra impact and power.Even the headband is designed for better bass, providing a stable fit to minimise vibration caused by punchy bass notes. Wireless freedom Your Sony MDR-XB650BTB Headphones are completely wireless for more freedom. Pair them with your smartphone or tablet using Bluetooth or NFC for easy music streaming.With NFC simply tap the two devices together to begin listening to the music stored on your smartphone or tablet. Built-in microphone & remote control A built-in omnidirectional microphone means you won’t have to miss any important calls.A jog switch on the ear cup provides direct access to playback controls, letting you take calls, adjust volume, play, or pause and skip music tracks. Fold it flat for easy packing The Sony MDRXB650BT Wireless Bluetooth Headphones features soft cushioned ear pads that can swivel flat for easy packing inside your bag or suitcase.