1. Meet ANSI standrard
2. CE en approval
3. FM radio ear muff
4. Dual purpose for work and pleasure
5. Natural sound impression by stereo to upgrade sound quality for FM radio effects.
6. Independent FM and volume adjust knobs(88MHz-108MHz)
7. Very comfortable to wear & easy portable.
8. Cell life in inverse proportion to length of use and amplification results in noisy environmens ervice life of alkaline cell ranging about 70-72 hours.
9. Easy cell replacement(1.5v x 2 ) simply by opening up the cell cabinet
10. Nrr value =24db