SMS Audio SYNC by 50 Cent On-Ear Wireless Headphones - Black The new SYNC by 50 On-ear wireless headphones have Version 4.0 Bluetooth technology with aptX Professionally tuned 40 mm custom drivers, offer users the best sound quality when listening to any genre of music Experience studio mastered sound wherever you go at a range that is up to 10 metres The hybrid functionality of the SYNC by 50 On-Ear wireless headphones gives you wireless playtime for up to 17 hours Stylish, high quality design with soft memory foam cushions