The Kit Comprises Of:
 •Videx 837M-1 Speaker Panel
 •Videx 881 Surface Box
 •Videx 520M 12V AC/8V DC Transformer
 •Videx BT Slave Socket
 •Videx SP380 Interface
 
Additional Info
 •Modular system.
 •System is connected to master BT phone point.
 •Can be used with normal or DECT cordless handsets.
 •BABT approved.
 
Operation:
 
Press button on front panel to call handset, lift receiver on BT handset for two way speech, press release button designated on the handset to open door.