I was skeptical about this hat. However once I charged it up, hooked it to my phone and put it on my head, I was pleasantly surprised with how good the music quiality actually was.
All the points in the description are true from my testing.
This Upgraded Bluetooth hat with built in 180mAh Rechargeable Li-Ion battery can play music up to 6-8 hours and and 60 hours stand-by time with a quick charge of 1-2 hours(USB cable included).
Excellent Sound Quality: Enjoy enhanced music listening experience with advanced digital sound and crystal clear high note while staying warm, delivered by high performance stereo loudspeaker driver offer upto 110DB HD stereo sound. While other brands' upto70DB only and you can hear nothing in crowd.
Washable & Unisex design: The headphones are removable easily when the beanie needs to be washed. Unisex, soft and elastic mearial fits most of the head circumference. A must have Christmas gift for men, women, girls, boys.
Im really surprised at this hat. I'll be getting another one as a gift for a favorite guy who works outside all winter