Smart Bluetooth Headsets
Sunglasses + Headphones + Talking 
Looking out is a pair of sunglasses! lt's great to listen to songs outdoors.
Bone conduction sound, 360 " stereo surround sound
Only 30g light to be like a feather, zero burden to ears
Bluetooth 5.3, listening to songs, making phone calls, listening for navigation
High-definition anti-UV lenses.