) reviews which stated that this is a wonderful device. The unit is very small
I purchased this after reading the many (?) reviews which stated that this is a wonderful device.  The unit is very small, very light weight and is, in my opinion, very cheaply made.  It is battery operated on (1) double A which I thought to be convenient and easy to transport.  I chose to keep the unit because it's more trouble to return it, verses the price.  I would not purchase it again and if you are a person who is looking for a long lasting unit, I don't think this is the one to purchase.  Very disappointed!
Rating: 2 stars