Sonic Alert has four models of remote receivers to meet the needs of every type of customer. Each model of remote receiver will alert you when they receive signals from the signalers on the previous pages. All you have to do is plug them in and they are ready to use. The Sonic Link model SA 201 with its sleek modern case will alert you by flashing any lamp that is plugged into its Pluglet -Plug-outlet. The Pluglet allows you to keep your table uncluttered by unsightly lamp cords. The signaling lamp can also be used for normal room lighting by using the lamp on/off switch. There is also an indicator light to remind you to turn on the attached lamp.- SKU: SOAL008