The ADSL Noise Killer is a noise filter designed to prevent noise generated by telephones from interfering with ADSL modems on ADSL lines, thus preventing a decrease in communication speed. By connecting this filter to the telephone port (TEL port) of an ADSL splitter or the port of an ADSL modem, it suppresses the impact of noise from household appliances and the telephone itself on communication, realizing a more stable communication environment. Name: ADSL BAND AM Noise Killer Model Number: NT-T32NK ■ Please understand that this is a used item and may have discoloration, minor scratches, etc. before purchasing. ■ No claims and no returns accepted. Please note that we cannot accommodate price negotiations or post-purchase support.