Wireless Calling System Restaurant Pager System Vibration Buzzer System with 20 Pagers for Restaurant Church Clinic US Plug ( Item#: C9751US )

Features:
999-channel Keypad Transmitter
The paging system is expandable up to 999 pagers, you can add more pagers to the wireless calling system as your business grows.
Three Prompt Modes
It provides three prompt modes, vibration, buzzer and vibration+buzzer, each mode is accompanied by the LED flashing, can choose according to need.
Advanced RF Wireless Technology
High sensitivity, based on 433.92MHz radio-frequency, the transmission is more stable between keypad and pagers which is hardly disturbed by other radio signals. The transmitting distance is about 1000m(3280ft) in open area.
Simple Operation
When the order is ready, just press the keypad to call the number, the customer will get it through its alert function.
Strong and Resistant
The pager is made of high quality PC, sturdy and durable resistance to fall down.
Rechargeable Battery
Each pager has a bulit-in rechargeable battery, avoiding the trouble of changing batteries frequently, ensures long standby time.
Wide Application
Suitable for 4S store, book store, hospital, bank, factory, shopping mall, recreation center, restaurant, cafe, clinic, church, test center or other queue occasions.

Specification:
Keypad Transmitter
Frequency: 433.92MHz
Standby current: 24mA
Transmit current: 100mA
Encoder: Learning code(AM)
Working voltage: DC 5V/6A power adapter
Adapter: AC 100-240V 50/60Hz
Size: 30 * 14.9 * 3.3cm /11.81 * 5.87 * 1.3in(L * W * H)
Weight: 812g /28.64oz
Receiver
Frequency: 433.92MHz
Receive sensitivity: -107dBm
Decoder: Learning code(AM)
Standby current: 10mA
Working current: 75mA(vibration)
Power: Built-in 360mAh rechargeable lithium battery
Charging voltage: DC 5V
Size: 10 * 5 * 1.1cm /3.94 * 1.97 * 0.43in(L * W * H)
Weight: 40g /1.41oz
Package size: 30.7 * 30.4 * 7.09cm /12.09 * 11.97 * 2.79in(L * W * H)
Package weight: 1693g /59.72oz

Packing list:
1 * Keypad Transmitter
20 * Pagers
1 * Antenna
1 * Power Adapter
1 * User manual