3M™ WorkTunes™ lets you substitute the noise of the jobsite or workshop with your favorite music. Stream music from your smartphone, tablet, MP3 player or other Bluetooth device. Bluetooth streaming lets you eliminate cords and use a simple dial to control your music. Voice Assist guides you to your favorite radio stations without having to remove WorkTunes from your ears and helps program Bought the 3M Worktunes for my workplace at a Honda dealership. I use them four times a week and almost throughout the entire shift, they're on for pretty much 8 hours. I purchased and received my first pair on Dec. 15-2017 and they have been a solid purchase since. Pros to Worktunes: 3M WorkTunes Connect Hearing Protector with Bluetooth Technology work perfectly in blocking noise while hearing your incoming calls and listening to music. The noise reduction rating is 24 decibels. I have to admit that I do not work in a career where hearing protection is a necessity. 3M WorkTunes connect wireless Hearing protector with Bluetooth technology provides entertainment and Hearing protection in one easy to use and comfortable earmuff. Seamlessly streams music from Mobile phones, tablets, iPods or any other Bluetooth enabled device. 3M WorkTunes Hearing Protector is the ideal choice if you are looking to protect your hearing while enjoying your favorite music or radio station. Perfect for the workshop, job site, or yard, 3M WorkTunes Hearing Protector blends hearing protection and entertainment seamlessly. Over the head earmuff with AM/FM digital radio 3M 90543-4DC WorkTunes Connect Hearing Protector with Bluetooth Technology. $59.94. Free shipping . 3M™ WorkTunes™ Connect Wireless Hearing Protector with Bluetooth® Technology. $58.99. Free shipping . Downloads CAD Models, MSDS, Manuals 3M WorkTunes Hearing Protector with AM/FM Radio I like the fact these 3M worktunes have user replaceable batteries, that 3M sends out replacement earpads free of charge, and that I can connect