CDMA coverage is throughout the USA, China, Korea, India, Japan and elsewhere.  The best way to know if you have CDMA coverage is to find someone with a CDMA cellular or PCS phone and see if it indicates any signal level at all.  Our products work in very poor signal level conditions.

If you are unsure that you have the appropriate CDMA coverage contact us.  Also, since we offer a 60-Day Money-Back Guarantee there is no risk in trying it out.  We have shipped thousands of units throughout the world and our return rate has been less than 1%.