I can not give a detailed assessment so as my previous reviewers because I'm not as well versed in technical matters now. Become attention I am by the Stiftung Warentest, I had no such device, but desperately needed private time. The good reviews here in terms of "ease of use" have convinced me to buy the equipment and I do not regret it. The service is for me, "technophobes" really very simple, and with the results I am satisfied. I would the device to others.