All in all, the 350BT, in spite of minor issues, turned out to be quite impressive, in terms of both performance and reliability.
Sennheiser HD 350BT review
Sennheiser HD 350BT review: Great wireless-only cans - SoundGuys
Sennheiser HD 350BT Wireless Over Ear Headphones - Black - SHUTTER SHOP
Sennheiser HD 350BT review
Sennheiser HD350BT Headphones - Excellent
Sennheiser HD 350BT Review
Sennheiser HD 350 BT Wireless Headphones Black - Incredible Connection
Sennheiser 350BT Over the Ear Wireless Headphone – Black – Lakemba Shop
Sennheiser HD 350BT Review
Sennheiser HD 350BT Review - Hardcore Droid
Sennheiser HD 350BT Review - They're Okay But I Expected More