Shop online for Astell&Kern AK Jr 64GB Portable Hi-Resolution Music Player and DAC - Bundle With 64GB Class 10 MicroSDXC Card. The AK Jr extend gives everybody the chance to serenely tune into high determination sound, at whatever time and anyplace. In spite of the fact that the AstellKern was a compact gadget, it's generally substantial size made it less helpful for a few. The AK Jr's minimal plan conveys the most elevated sound quality while fitting easily in your pocket. The AK Jr resembles conveying a little show in your pocket.