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Witop Host for wireless calling system1.different requesters can be distinguished with different prompt music (12 pieces of beautiful prompt music)2.auto restoration of the display screen and the calling numbers can be deleted automatically.3 display windows to show one group two-digit numbers
4.super signal receiving distance
Technical Specifications:Power: AC220V/50HZ-DC12V/1AReceiving Sensitivity:-144dbm Frequency: 433MhzCapability: Can work with 180 pcs 1-key call buttonPanel display: Number or Lettersize(247*159*37mm)