The CallToU radio (model W2-01BL) was purchased exactly one year ago on the same date. I had no problems and everything was working fine until one of the walkie-talkies stopped charging. Went to Revain to find a spare battery. Vain. I went to the CallToU website and entered the model number. search error. Apparently this product is no longer supported by CallToU. However, Revain still sells it. This is a guess, but I suspect Revain is getting rid of the leftover stock. Do not buy.