: Uses very high compression to keep file sizes small while maintaining speech clarity. 🔓 How to Open and Play the File Top 5 AMR File Players Free Download - WinXDVD

(Adaptive Multi-Rate) is an audio format optimized for recording human speech .

: Developed by Ericsson and used widely in 2G and 3G cellular networks.

The string likely refers to a voice recording file generated by a mobile device.