“Speaker for Public Address system,
Type: Water proof type, NVS-411R
Water roof type horn speaker.
Dwg.: N2075_E-1410, Public address system,
Dwg.: DH12-NVS-441R
Speaker model: NVS-441R.
Maker: Japan Radio Co., Ltd.”

1、WATERTIGHT SPEAKER-BHS-10B(5W)-
MAKER: MRC MARINE RADIO CO.. LTD.

2、WATERTIGHT SPEAKER-HP-25D(10W)-
MAKER: MRC MARINE RADIO CO.. LTD.

3、WATERTIGHT SPEAKER-HS-50A(50W)
MAKER: MRC MARINE RADIO CO.. LTD.