... Manage&Search the voice data,built-in speaker. 1 line, 8 line, 16 line phone recorder. About the stand-alone type, we have ... activates and deactivates on a single line normal analog telephone. Stand-alone, it works independently without PC. Built-in TF card ... DTMFManage and inquire the voice dataContact: Joe Schelling Cell : 86-13537695887 1CH, 2CH, 8CH, 16CH Standalone Voice Logger DAR-1001 with SD ...