Allen, ULTRX Bionic E-Muff, Electronic Earmuff, NRR 22dB, Rubberized Protective Coating, Veil Tac Gray NEW Sound Amplification up to 82dB 2 Hi-gain Stereo Microphones Rubberized Protective Coating Meets ANSI S3.19 and CE EN352-2 Aux Port Accessory Function Operates on 2 AAA Batteries NRR 22dB Product Description Allen's comprehensive lineup of hearing and eye protection under the ULTRX brand. From foam ear plugs to electronic eBuds, the ULTRX lineup is a complete solution for hearing protection focusing on the broader needs of hearing protection. From vibrant color pallets to high performing electronics, the Allen ULTRX brand covers all possible formats, functions and sizes.