Features
The Astell & Kern XB10 is arguably the best mobile Bluetooth-based headphone amp out there. Tiny and extremely light, it boasts an excellent sound and a lot of power. It also has a balanced output and can even play aptX HD. It is the perfect addition to make any in-ear or headphone compatible with Bluetooth. So you have the best of both worlds!
Directly from Astell & Kern authorized distributor, the Headphone Company!
Thomas from Headphone Company -
The little magic dwarf from Astell has it fist-thick behind the ears. The small Bluetooth amp plays powerfully, with plenty of power even for hungry headphones. AptX HD ensures the best possible transmission standard (if the source is also equipped with aptX HD). Plus a balanced headphone output. It's awesome. In addition, the XB10 is super light and can be attached to a shorts or pants almost anywhere with a clip, or you can simply wear it on the neck. The ingenious addition to any in-ear or headphone to make it Bluetooth-compatible. Great product!
... and what do the hi-fi editors & bloggers think? Here is the overview of Astell & Kern Amps / DACs