1、Restaurant Pager System: The pager system contains 1 pcs 16 way calling keypad and 16 pagers, single charging base can charge 16 pagers at the same time, and 1 transmit keyboard can call up to 999 different pagers. 2、Built in Battery: Each pager has built in rechargeable lithium battery, with low battery and charge indicator, convenient for charging. 3、3 Prompt Modes: The pager has 3 prompt modes, vibrate, buzzer, vibrate plus buzzer, each accompanied by LED flashing, effectively reminding customers to take their food. 4、Long Receiving Distance: With external antenna, the operating distance is up to about 1000m (3280 ft) in the open area and 200 to 300m through wall. 5、Key Function: Long press for 3 seconds to switch on and off the machine, short press to reset to standby state, short press SET to enter code recording state, long press for 5 seconds to clear code. Item Type: Restaurant Pager System Material: ABS Receiver: Operating Frequency: 433.92MHZ Standby Current: 10±5mA Working Current: 75±10mA (Vibration) Receiving Sensitivity: -107±2dBm Built in Lithium Polymer Battery: 16 x 360mAh Decoder: Learning Code (AM) Transmitter: Operating Frequency: 433.92MHz Standby Current: 24±5mA Sending Current: 100±30mA Encoder: Learn Code (AM) 1 x Transmitter 16 x Receivers 1 x Charging Cable 1 x Power Adapter 1 x Manual 1 x Antenna Rod