The C Programming Language
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NOLAS Social Distancing Pagers for Restaurants Paging System Lineup Waiting Queue Signal Calling Long Range Customer Service for Cuisine Church Clinic Restaurant Pager
Best Choice for Social Distancing Buzzer Pager System 5 Alert Mode: Vibration, Beeping, Flashing and Various Combination Includes: 24xpagers, 1xTransmitter/Charging base, 1xPower adapter, 1x User Manual Group Call Without Re-program A built-in 3.7V r...