The favorite thing of mine that Chad Showed & I bought & use are Bluetooth sunglasses.
WONFAST Bluetooth Sunglasses + Free Replaceable 3 pair lens (Yellow,Brown,Clear) - Red frame. Here are the features listed on Amazon: (We didn't correct any of the grammar.)
Support both headset and hands-free profiles, calling voice and Reporting phone number function when calls coming. Bluetooth 4.1 Music sunglasses ,can listen music, Bluetooth 4.1, Support iPhone iPad iPod Samsung HTC Sony Smart Phone PC Tablet. Auto switch to phone talking mode when making and receiving calls, Support Mp3 can listen music, With Previous/Next Song control, Volume Up/Down control. Made of polarized lenses , it has the function of anti-rays, no glare and good eye health care. Hi-Fi earphones built directly on to the frame, and can be adjusted 270 degree for comfortable fit.
And Chad's take?
Chad liked these. He even made a video so we could hear the phone audio quality over the Wonfast Bluetooth sunglasses. The audio was okay, but Chad said the music playback was very good. And not only can you flip up the sunglasses lenses, it comes with 3 extra sets in various colors, plus a small screw driver to change them. Chad think these Bluetooth enabled sunglasses were a worthwhile gadget for under $17.00, and I saw several people in the chatroom say they were ordering a pair for themselves. I ordered a pair too. There are available in many different frame colors which you'll see on the Amazon page. When I pointed out that these seemed to be one of the best cheap gadget Chad had reviewed in recent history, Chad added: “Yes, it one of the least crappy things I bought.”
They are still $16.88 & Amazon Prime on 12/28/16 here: http://amzn.to/2adJRSk
That's a Giz Wiz link above. You pay exactly the same as everyone else but Amazon gives a small credit to buy more stuff for the show. If I find it cheaper elsewhere, I don't use the Amazon link and advise you of the lower price.
See or hear this show: www.gizwiz.tv/episode/1603