The KROPKI precision sound navigation system allows blind and visually impaired people to determine the entrances and exits of urban infrastructure facilities: buildings, offices of institutions, clarify the work schedule or receive other information about a social facility.

The KROPKI precision sound navigation system is designed for use by blind and visually impaired people. The system combines a speech sound informant and a free KROPKI mobile application.

The KROPKI mobile application allows you to:
- Receive information about objects equipped with speech informants: address, operating mode, features of the object's location
- Automatically connect to informants via Bluetooth (BLE) when approaching,
- Navigate by the direction of sound - move safely and accurately.

Precise sound navigation system:
- Developed within the framework of the requirements of regulatory documents in the field of creating an accessible environment (SN 3.02.12-2020) and was tested by blind users.
- allows you to increase independence and confidence when moving around the city.