Stark SGS10-M FM Portable Two Way Radio. Stark SGS10-M Walkie Talkie. Stark SGS10-MWalky Talky. Stark SGS10-M High-Capacity Battery. Stark SGS10-M Channel Scan. Stark SGS10-M Time Out Timer. Stark SGS10-M Low Power Alarm. Stark SGS10-M Voice Prompt(English). Stark SGS10-M Complies With IP54. Stark SGS10-M Equivalent to U.S. Military.