Warning: DO NOT BUY THIS PRODUCT!We bought one of these units approximately nine months earlier. It worked well except that one microphone "cut-out". After a lot of experimenting we were able to get it work by putting two quarters under the battery thus increasing the pressure on the contact points. This "remedy" lasted about two months. Now the microphone is "dead"!Although it seems amazing, we have been unsuccessful in obtaining manufacturer contact information either from Amazon customer service or Google searches. Since we cannot find a way to have the bad microphone repaired or replaced, the system is useless as a two microphone system. A one microphone system does not meet our needs. Therefore we wasted $229. We thought this was a bargain but it shows you that you get what you pay for!