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Useful Telephone RJ11 Line ADSL Modem Micro Filter Splitter Kit:
$0.11
This adapter separates voice signal and ADSL digital signal from telephone signal
Protect the voice signal and ADSL digital signal from the interference of a telephone and a fax machine
One RJ11 at one end for line
Two RJ11 at the other end for phone and modem
Dimension:5.5cm*4cm*2cm( approx)RJ11 Line Splitter Filter x 1