A selection of 32 high quality true sound melodies|Variable volume setting. 80dB loud sound|Flashing strobe - Visual notification for the hearing impaired|Replay and listen to current melody|Easy install.|No wiring.|MIPT modules link wirelessly|UK plug low power consumption|Link this transmitter to any MIP products|Ability to select different melodies for up to 4 bell pushes or sensors|Includes window sticker to ward off cold callers|Compatible with previous MIPT generations