3M 90543-4DC WorkTunes Connect Hearing Protector with Bluetooth Technology

Noise reduction rating (NRR) of 24dB or higher when worn properly* Equipped with 40mm high fidelity Speakers for premium sound quality Easy-to-use one button interface helps keep you focused on the job Built-in rechargeable battery; charging cord included Comfortable, no-pressure headband 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. An integrated microphone enables ability to make and receive phone calls without having to remove the Headset leaving you truly "connected" while at work. Equipped with 40mm high fidelity speakers for premium sound quality. Voice assist technology provides set-up and operational guidance without having to remove the Headset. A modernized design offers a lightweight and low profile cup with No cords or antennae to get in the way. Additional features include: a Simplified and easy to use interface, built-in Lithium rechargeable battery pack with cord for charging, and soft conformable ear cushions for all day comfort and secure fit. Compatible with Non Bluetooth devices via 3.5mm audio cable (not included). Noise reduction rating (NRR) of 24dB.