The 3M WorkTunes Connect (model 90543) is an over-the-head electronic hearing protector with NRR 24 dB and integrated Bluetooth audio streaming. It runs on two AAA batteries with up to 30 hours of playback time. Designed for construction, landscaping, and workshop environments where hearing protection is required while staying connected to music, podcasts, or phone calls. Compatible with most smartphones via Bluetooth. No AM/FM radio. Suitable for wearing with standard hard hats.
Can I take phone calls with the WorkTunes Connect?
Yes. The WorkTunes Connect has a built-in microphone and supports hands-free Bluetooth calling. Call audio plays through the ear cups and the mic picks up your voice, though wind or loud machinery nearby can affect call clarity.
Does the NRR rating still apply when I'm playing music through Bluetooth?
Yes. The physical NRR 24 dB attenuation comes from the ear cup seal and cushions, which work independently of the audio electronics. Music plays inside the protected space, so noise reduction is not reduced when audio is active.
Why does it use AAA batteries instead of a built-in rechargeable battery?
AAA batteries can be swapped in seconds without any downtime or a charger. For all-day jobsite use, carrying spare AAAs means you're never stuck waiting for a charge. With up to 30 hours of runtime per set, most users replace batteries weekly or less.
Will these fit under a hard hat?
The WorkTunes Connect is designed to be compatible with standard hard hats. Fit depends on your specific hat model — low-profile hard hats may be tight. Many users on construction sites wear them under class E helmets without issue.
Does the music cut out automatically when the mower or tool shuts off?
No automatic cut-off — audio continues playing until you pause or stop it on your device. The ear cups have a power button to turn the unit off when not needed.
How far away can my phone be while still connected via Bluetooth?
Bluetooth range is approximately 30 feet (10 meters) in open conditions. Walls, machinery, and interference can reduce this. Most users keep their phone in a shirt or pants pocket without issue.
# 3M™ WorkTunes™ Connect Wireless Hearing Protector **Model:** `90543` **Brand:** 3M **Category:** Hearing Protection > The 3M WorkTunes Connect (model 90543) is an over-the-head electronic hearing protector with NRR 24 dB and integrated Bluetooth audio streaming. It runs on two AAA batteries with up to 30 hours of playback time. Designed for construction, landscaping, and workshop environments where hearing protection is required while staying connected to music, podcasts, or phone calls. Compatible with most smartphones via Bluetooth. No AM/FM radio. Suitable for wearing with standard hard hats. ## Specifications | Attribute | Value | |---|---| | Product Type | Electronic Hearing Protector | | Style | Over-the-Head | | Nrr Db | 24 | | Bluetooth | Yes | | Am Fm Radio | No | | Battery Type | 2x AAA | | Battery Life Hrs | 30 | | Weight (lbs) | 0.57 | | Barcode (UPC) | | Source: https://www.jaspecs.com/3m/hearing-protection/90543-3m-worktunes-connect-bluetooth-hearing-protector/