CTW07 for Waiter Call Clinic Coffee Shop 1 Receiver + 3 SOS Transmitter Wireless Button Waterproof Wireless Calling System - EU Plug/White

• This receiver has perfect design, big enough screen for easy reading
• The receiver can store 20 groups of real-time call information
• Large capacity, can support 500 pieces of pager transmitters
• The equipment can be equipped with a lanyard. It can also be hung on your chest pocket or belt

Specifications:

• Item number: CTW07
• Material: ABS engineering plastic
• Size: Receiver: 52.3*61.7*16.5mm, SOS call button: 55*30*10mm
• Receiver:
• Function: display calling function, calling time, calling sequence
• Power supply: USB interface
• Capacity: 500 pagers
• Alert Mode: Vibrate or Ring
• Receive sensitivity: -110dbm
• Frequency: 433.92MHz
• Storage capacity: 20 groups of real-time call information can be stored
• Transmission distance: 800-1000 meters
• Battery: 3.7V 230mAh (included)
• SOS call button:
• Battery: CR2032 button battery (included)
• Modulation method: ASK(AM)
• Working Chip: Learning Code
• Launching distance: 200m (open field)
• Working: -10°C to 50°C
• RF frequency: 433.92mh