The built-in femto-clock makes jitter a thing of the past, and the unique Cyberdrive amplifier specially developed for the xDSD ensures an ideal match with both large headphones and ultra-sensitive In-Ears, both single ended and balanced. The same Cyberdrive also monitors usage so that the built-in 2200mAh battery is good for up to 10 hours of independent music enjoyment. And thanks to the built-in Bluetooth receiver, you can also connect your music player or smart device wirelessly to the xDSD.