The PKI 2135 Digital Telephone Recorder still records conversations from a distance of 20m with the special integrated directional microphone. The oppertunities offered by this PKI 2135 Digital Telephone Recorder device are simply amazing. With its dimensions of only 9 x 23 x 63mm plus directional microphone tube of Ø 5x 30mm and a weight of only 20g, important conversations can be recorded almost unnoticed, and that automatically, without a person having to be present and this in an excellent audio quality in the standard version for up to 14 hours (longer runtimes on request, via the delivered earphones, a direct playback without PC is also possible).