Beyerdynamic cut the cord to offer their top-of-the-line Xelento headphone in a bluetooth wireless model. Like the original, the Xelento Wireless produces audiophile-quality sound using Tesla transducer technology. To keep these wireless earbuds small and light, Xelento put the battery in a small aluminum cylinder that clips to your clothing. The cylinder has a 3.5mm input port for recharging the 5-hour battery. Available July 2017.