The Echo Input is Amazon’s answer to the Google Chromecast Audio, which allows users to stream music to almost any speaker that features a 3.5mm audio cable. The Echo Input will work the same way, but also include additional features to set it apart from Google’s offering.
CCG writes - "The Sineaptic SE-1 is quite a remarkable headphone. It's an amazing first product from a new company. It does some unusual things like offering Bluetooth and 3.5mm inputs in an audiophile headphone. It offers an incredibly unique driver design at an amazingly low price. Its build quality is fine, but not spectacular, as long as you get one with no production issues."
Four years later and Sonos introduces a new portable speaker, the Move 2, bringing original innovation.
All in all, I’m a fan of the Cleer Arc II.T They’re brilliant at what they’re advertised for: being the ideal running companion.