Check the listing for details. "WIRELESS REMOTE" RING GENERATOR for Stage or Screen Prop, Tele phone Ringer q. Condition: New. Listed at 119.95 USD. This is a combination of a Ring Generator and a Wireless Adapter This combination is easier to use since there is only one unit.The only disadvantage is that it is NOT compatible with our Cadence Adapter (do not buy this if you want the cadence adapter)WIRELESS RING GENERATOR for Stage or Screen Productions, Props for telephone ringing, ringer power supplyModel RGWBe sure to check out our video in the photo lineup WHY DO YOU NEED A “Wireless Ring Generator” by TeleRing? No more control wires to run and trip over Faster setup time, more convenient to useThis unit provides the standard ringing voltage to operate any standard telephone, old or new!This is the standard for ringing phones. It rings loudly and at the correct sound frequency.This can be used for theatrical work, vintage telephone displays, testing bench, or any application where you need to have an accurate sounding ring. Can also be used to activate modems, answering equipment, etc. as a telco CO ring signal.This ring generator will operate prop telephones for stage and screen. Telephones of almost any kind or age are connected to the ring generator using standard modular connectors. This unit will ring any telephone that works on a standard phone line. This is a hand held, wireless operated, telephone ringing voltage generator. The operation is "wireless remote" controlled however it does need to plug in for power. The power supply adapter is included with the unit. The operating instructions are simple: connect any telephone to the modular jack and press the button on the unit OR the wireless remote button! If your telephone does not have a standard modular plug, please contact us, and we may be able to provide an adapter.This unit also provides the option of external controlBody Dimensions: 5" x 3" x 1.25" (approximate)FREE SHIPPING!CLICK HERE to see Non-Wireless Ring Generator 89.95 Model RGBCLICK HERE to see a Telephone "Bell" listingCLICK HERE to see our new awesome ALL-IN-ONE!