With 20 hours of battery life and just 3 hours of charge, Listen Wireless really takes your music everywhere, in total freedom. The heat-sensitive memory foam ear cushions offer optimum comfort. Innovative 3/4" (40mm) Titanium/Mylar drivers guarantee superior sound performance. Listen Wireless and its Chic edition guarantee superior sound performance, close to CD quality. Listen Wireless are Focal’s closed-back wireless headphones, equipped with Bluetooth 4.1 wireless technology aptX compatible.