Packed with cardboard,OK protection for item inside.
an usb cable, English user manual came with the bluetooth hat, USB cable quality is good.
user manual very helpful. it does tell me what function of those button on hat
charging port is a micro USB port, universal match for most of smartphones charging cable
Hat standard diameter is about 9 inch,and it is flexble, Max strench size will be 14 inch(well, i am not try my hard, just in case the hat damage by myself).
Woolen(not sure if it is wool or cotton or some other material) knitting outside,
a very soft hair(do not know what kind of material made of) inside.Cosy and Warm.
Bluetooth earphone is built inside hat, it has three button to control music and phone call,
very simple to handle, no explain here,you can study it with user maual.
for earphone, Voice quality is perrety good! just like my phone's earphone voice.this really supprise me.
Anyway, it is a good bluetooth hat.real item looks better than pictures.
Notice!!!!!!!!
What i am worry about is its Durability, just suggest you do not use violence to your hat.
and do not tear it hard like a Rubber band, it's not stronger like it!
Just treat it like a hat,OK?
Then i think it will work for a long time.
And I put Purchase Link Here in case you need it: https://www.amazon.co.uk/DIOSN-Bluetooth-Wireless-Headphones-Earphones/dp/B01MYUBNMX/keywords=bluetooth+beanie+hat
