FM Radio Ear-Muffs. Dual purpose for work and pleasure:
•Natural sound impression by stereo to upgrade sound quality for FM radio effects.
•Independent FM and volume adjust knobs (88MHz - 108 MHz).
•Very comfortable to wear & easily portable.
•Cell life in inverse proportion to length of use and amplification results in noisy environment service life of alkaline cell ranging about 70 - 72 hours.
•ANSI N.R.R. Value = 30 dB.
•CE S.N.R. Value = 25dB.