Sonic Ring Jr, Telephone Signaler - Sonic Alert Sonic Ring Jr, telephone signaler- Never miss an important call- Built-in lamp outlet- Indicator light warns when lamp is turned off or light bulb is burned out- Ideal for dorm rooms and efficiency apartments- Installation: plug unit into outlet plug telephone cord into modular phone jack (use optional two-to-one adapter if you want to plug the phone and signaler into the same jack) and plug lamp into outlet on the unit- 5 Year manufacturer s warranty- WhiteSATR50 SKU: TDNM416