Audio Technica ath-DSR9bt is a state of the art, bluetooth full size headphone. It has leather pads, memory foam, 15 hours battery life, a flat carry case, AAC for IOS devices and Apt-x HD for others. Paired with an LG G6 in store, which has apt-x HD, these sound wonderfully clear, open and detailed - not at all what most expect from bluetooth. You also get awesome performance from an iphone or ipad. DSR9bt feature several new technologies to provide better sound quality:
theverge.com, 2017: I’m grabbing the DSR9BT's just because I feel the music when it flows through them. Movies are more immersive, voices are more realistic, and distortion is practically nonexistent. The DSR9s sound better than pricier alternatives like the Bowers & Wilkins P9, Audeze EL-8, Denon D7200, and AudioQuest NightHawks. In the world of wireless audio, their sound quality is without peer.