text: Item not as featured.
  
  I cannot rate the efficiency of the unit because I've not been able to use - only directions enclosed are written in Chinese, not a language I am versed in. Additionally, received an entirely different brand of unit, similar in look but not what I actually ordered. Contacted vendor who had offered to send an instructional video (did not) and did not address the brand switch. Without further email exchange I was given a $10 credit toward the unit cost of ~$30 - appreciated but not what I asked for so now I've spent only $20 on an item that is going unused (until I can locate some online user instructions. Oh well...