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3M WorkTunes Connect, Bluetooth Ear Defenders Wireless, 90543EC1, Hearing Protector Earmuffs, Connect your Mobile Phone for Calls or Streaming, 30+ hours battery life, Rechargeable, (94-105 dB) : Amazon.co.uk: DIY & Tools
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3M Worktunes Wireless Hearing Protector with Bluetooth and AM/FM Radio - Black for sale online | eBay
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3M WorkTunes Connect + AM/FM Hearing Protector with Bluetooth Technolo – DirectNine - United Kingdom
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3M Worktunes Wireless Headset 24 Decibels with Bluetooth & Integrated Microphone 193979074346 | eBay
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