It appears that most of these are disappointing, although I've never had one, I've read a lot of reviews about them, and most people end up unhappy with them.

They seem to have terrible radio range, (meaning the receiver (the egg) can't be too far from the transmitter (the control) making "long distance stimulation" even across a regular sized room difficult) the charges on the receiver are short, the vibrations are sub par, many of them are very loud and few reviews give them high rates of approval.

My husband is an Electrical Engineer and he thinks they could invest in higher quality radio equipment and input from RF and Electrical Engineers to make this product work. It would require going back to the drawing board and starting all over and looking into decent quality receivers and transmitters in small sizes, and that wouldn't be inexpensive! If the manufacturers don't do this they risk continuing to disappoint consumers.

And, remote "vibrating panties" seem to the the worst of the bunch. (Yeah, NOTHING you see in a Katherine Heigel movie is true!)