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Howard Leight SYNC Noise Blocking Earmuff Plus High Fidelity Sound Quality Noise Reduction Rating 25
No batteries required. Plugs into any portable music source including MP3 players and smartphones. Control volume, power and song selection from the audio device. Enhances bass sound. Lightweight earmuff with soft padded earcups. Padded headband maximize comfort. Reinforced fork slides with handholds for easy headband adjustment. Includes 3.5mm audio connection cord. Noise reduction rating (NRR) 25.