I bring to your attention a review of Plextone BX335 wireless Bluetooth headphones with automatic on / off on contact.

Plextone BX335 Bluetooth headphones with magnetic on/off switch

I have never come across such a feature before, but after a few days of use, I can say that it is really very convenient. The kit includes a case, three pairs of silicone tips, a charging cable, user manual and additional hooks for better fixation of the earphone in the ear. The body of the headphones is made of metal, and is made very high quality. Headphones are delivered in a thick cardboard box.