Hppfotrs Digital Telephone Voice Recording System Recording Machine Single Line Voice Logger for Analog Line Recording 340 Hours No PC required Plug and Play!!Additional CD with English instruction version in it. 340 hours Built-in storage Support to PSTN, analog extension, digital extension, microphone, audio adaptor, environment, meeting, 2-way radio and radio broadcasting recording. Records all automatically as default or configures it as manually start Record call conversation, Call Type, Date, Time, Incoming/Outgoing number, call duration, recording duration and important mark