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3M Worktunes: Bluetooth technology lets you seamlessly stream entertainment from your mobile phone and any other Bluetooth enabled device and AM/FM radio with clear sound and bass boost option for great listening
3M Worktunes: NRR of 24 dB (Noise Reduction Rating) and High Fidelity Speakers Provide Premium Sound Quality
3M Kids Hearing Protection: Creates a quiet environment for studying, reading or relaxing in shared indoor spaces
3M Kids Hearing Protection: 22 dB NRR (Noise Reduction Rating)/ANSI S3. 19-1974 Certified and Kid-friendly design comes in a variety of fun colors that kids will want to wear
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