- The ULTRX™ Bionic Earmuff redefines your audio experience, bringing together top-notch sound, comfort, and safety in one sleek package. Experience audio like never before with dynamic wave compression system and a symmetrical microphone response, ensuring crystal-clear communication. Enjoy prolonged listening sessions with the cushioned comfort of Pillow Foam Padding and the convenience from power provided by 2 AAA batteries, extending the life of your device. Safety is paramount, and that's why our earmuff boasts a high Noise Reduction Rating (NRR 22dB). With an Aux Port accessory function, you have the flexibility to connect to various devices for an even richer audio experience. Rest assured, the ULTRX™ Bionic Bluetooth Earmuff is ANSIS3.19 and CE352-2 Certified, meeting the highest industry standards. Elevate your sound, comfort, and safety - all in one revolutionary device.