The compartment for batteries wa too small and the batteries wouldn't fit. When I tried to force the batteries in, the coil on one of the battery slots broke an rendered the device useless, never having been used. The return policy was ridiculous with the provision that only half of the purchase price would be applied if the package had been opened. How can one know if the device is usable before opening the package. And then the portion of the purchase price has to be applied to another purchase. Ridiculous. I called the contact number to speak with someone on several occasions and the call was never answered. Needless to say, a totally unsatisfactory experience. I will certainly not be using your services again.