Our proprietary IoT devices are:
- flexible & fast to install (unlike legacy systems)
- wireless battery based
- low energy bluetooth
- calibrated & highly accurate (unlike phone apps or other monitoring devices)
- always on (unlike phone apps)
- very low cost per-unit (unlike professional meters)

The devices do not record conversation, maintaining the privacy of the venue's guests and staff. The devices measure the sound level and its frequency s and rport this data over Bluetooth to Mumbli's cloud server with the help of a hub installed in each venue.