Sony WI-C300 Wireless In-Ear Headphones Overview Near Field Communication (NFC) technology makes complex set-up sequences a thing of the past. Simply touch selected NFC-enabled devices to the on-body N-mark for a quick, seamless connection, then start streaming content over Bluetooth wireless connection. You can also manually connect to Bluetooth wireless connection using your device settings menu. Enjoy up to 8 hours of non-stop music. Stream quality sound all day, Listen to your music in clear sound quality from 9 mm drivers. Wear all day, behind-the-neck design is shaped for comfortable and all day listening. Box Contents Sony WI-C300 In-Ear Headphones Micro-USB cable Earbuds(S/M/L)