3M Worktunes Wireless Headphone Noise Reduction Bluetooth New in Box

New In the box 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 Vented headband design features removable padding for versatile comfort Durable design is great for everyday use Automatic shut-off helps extend the life of your batteries Volume temporarily mutes when phone calls and messages are received Helps lower your risk of noise-induced hearing loss Noise Reduction Rating (NRR) 24 dB* Requires 2 AA batteries (not included) Optional lithium rechargeable battery (sold separately) – 3M™ ALPHA1100 Rechargeable Li-Ion Battery Pack for 3M™ WorkTunes™ Wireless Hearing Protector, Peltor™ Sport Tactical 300 Electronic Hearing Protector, and Peltor™ Sport Tactical 500 Electronic Hearing Protectors