I only had this today so the review may be premature. However, it came very quickly along with an email to tell me what day it was to be delivered. The device is very small and compact. I popped it into the car jack and connected to bluetooth very easily. seconds later my music from my iPhone was blasting out of my car speakers. the sound is terrific and the clarity is perfect. More than pleased so far if all is well this is a great buy.
As a teacher I mark lots of books, and after 50 books one tends to make the odd mistake when writing a comment ( wrong name is common) This pen sorts out this problem. As it is erasable I can quickly change a name or a right to wrong leaving no messy scribbles. A must for teachers. refills are available.