Wrist Watch Pager Receiver Wireless Smart Calling Button for Catering Waiter Call Button:&nbsp;(CTT20)<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Features:<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 1. Using special parts for aviation communication to ensure the stability of signal transmission, no worry it&nbsp;will appear messy code.&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 2. Weatherproof: safe, stable and reliable. Can change the number at any time, strong reusability.&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 3. Energy-saving: the battery can be used for over a half year. Waterproof base for conveniently change&nbsp;battery or maintenance.&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 4. It can be used with all receiver, portable BP receiver or watch. Service Numbers can be received at any&nbsp;location at any time.&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 5. Easy e: just put it onto table, press the function button when need service, the indicator lights up&nbsp;and sends a signal to the receiver. Widely used in hotels, bars, restaurants, factories, workshops, offices,&nbsp;tea houses, restaurants and other places of entertainment.&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> <br style="font-family:Arial;font-size:16px;white-space:normal;" /> Call Button:&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Specification:<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Condition:<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Material: abs<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Color: As Pictures Shown<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Battery:1 * 12v battery<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Calling distance: 300m (open area) Frequency:433.92 MHz / 315 MHz Call Button Size: approx.60*60*32mm/2.4*2.4*1.3in <br style="font-family:Arial;font-size:16px;white-space:normal;" /> <br style="font-family:Arial;font-size:16px;white-space:normal;" /> Wrist Pager:(CTW05)<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Features:<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 1. It has vibration, bell ringing, sleep function(when customers do not need to receive the call, can choose&nbsp;to go into the sleep state, in which the clock and alarm function still work, and almost no power&nbsp;consumption).&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 2. Adopted 3.7v polymer lithium battery, with normal standby time of about 20 days.&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 3. Can receive the caller signal alone, without the need for base station service. Built-in antenna.<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 5. Display a group of four digits. The machine can display a group of four digits or letters and store 10&nbsp;Numbers. Press M key to flip the page to browse the call number, press enter key to confirm the call and&nbsp;delete it;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 6. There are ring and vibration two prompt modes:&nbsp; customers can choose different prompt modes&nbsp;according to their actual needs, and switch between ring and vibration at will, which is simple and&nbsp;convenient.&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 7. With 500 call extension, any call extension can set letters and numbers combination, any bit can be set&nbsp;to 0~9 and other 10 numbers, ABCDEFGHIJLMNOPQRSTUWY and other letters and (-).&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> 8. Each call can be set to 2-bit, 3-bit or 4-bit display, such as 01, ABC, or A-08, etc.&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> <br style="font-family:Arial;font-size:16px;white-space:normal;" /> <br style="font-family:Arial;font-size:16px;white-space:normal;" /> Wrist Pager:<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Specification:<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Condition:<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Material: abs Engineering plastics<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Model: CTW05<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Color: As Pictures Shown<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Applicable for: Cafe, teahouse, Internet cafe and other service personnel receive customer call receiving&nbsp;end.&nbsp;<br style="font-family:Arial;font-size:16px;white-space:normal;" /> Transmission distance: The theoretical distance of the open area is 1500 meters