Main Features: Stable signal; food pager system is built in metal antenna; long durable use compared with ABS material; extendable length tops 25cm; more stronger signal; less interference 3 Prompt modes; vibration+light; buzzer+light; vibration+buzzer+light; easy to use; just touch the MODE button to switch mode; suitable for food truck use; vibration works great to get customer attention to know that their order is ready 999 Channel support; wireless paging system restaurant adopts learning code registration mode Long range; well transmission signal; no need to worry about multiple walls and equipment factors; a good choice for church nursery; restaurant or cafe Package Includes: •2 x Keypad Transmitter •30 x Coasters •3 x Charging base •5 x Power adaptor •2 x English Manual Wide Application: It is widely used in restaurants, food trucks, churches, clinic,Hosptial,health club and other places where many guests wait for service. It can help people get rid of the trouble of queuing and enjoy the best pleasure of life. Retekess Wireless Paging Queuing Calling System 10 Coasters Replaceme for TD165 Retekess TD165 Wireless Paging System Restaurant Food Pager System 3 Prompt Modes Long Emission Distance Support 999 Channel with 30 Coaster Pagers for Church Nursery Food Truck Cafe Easy to useThey are programmed for the receiver number; Just plug in; and they work well;Each charger base can charge up to 10 coasters at the same time Specification: Coaster Frequency 433.92MHz Shell material high quality polycarbonate Prompt mode Vibration & Buzzer & Vibration + Buzzer Power supply Built-in 3.7V 360mAh rechargeable lithium battery Charging base adapter Input: AC 100-240V, 50/60HzOutput: DC 5V, 3A(EU UK AU) DC 5V, 2.5A(US) Size 80 x 73 x 15mm / 3.1 x 2.9 x 0.6in Weight 59g / 0.13lb Package Includes: 10 x Coasters About Us