Allen Company, ULTRX Slim Fit E-Muff, Electronic Earmuff, NRR 24dB, Olive Green
- Single High Frequency Microphone to Amplify Sound
- Microphone Shuts Down at 82dB to Protect Hearing
- Operates on 1 AAA Batteries
- Meets ANSI S3.19 and CE EN 352-2
- NRR 24d