NOLAS 16 Restaurant Call Coaster Pagers/ Guest Waiting Pager / Wireless Paging System With Charging Dock and Transmitter (Also Available In 32/48 units) IPX6 Waterproof Manual Stop Button Extra long 1200 Meters, 3/4 Mile Signal Range Alert Modes: Glow, Beep, Vibration Includes: 16xPagers, 1xTransmitter/Charging dock, 1xPower adapter, 1x User Manual