ALL-DAY LISTENING: Keep your soundtrack going with up to 22 hours of rechargeable battery. Just 10 minutes of charging offers 4 hours of play time, thanks to Rapid Charge technology. ALL-DAY COMFORT: The pivoting armatures adjust for a perfect fit, while lightweight design and memory foam ear cushions allow for comfortable all day listening. It also allows them to lay flat on a table or around the neck when not in use. PREMIUM SOUND: For big sound no matter what you listen to, an integrated analog amplifier pushes a pair of high-quality 40mm audio drivers that give your music the rich, dynamic sound it deserves. EASY TO USE: Voice notifications assist in pairing your device. Take calls, change tracks, and adjust volume with the built-in controls and microphone. BACK-UP AUX CABLE: If you've transcended the need to sleep and your 22-hour battery needs charging or you have a device that requires a corded connection, just plug in the included AUX cord with microphone and remote and never miss a beat..