30dB Ear Muffs with FM Radio

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 = 30dB. CE S.N.R. Value = 25dB. Packaged and ready for display.