The 3M WorkTunes Wireless Hearing Protector combines Bluetooth wireless technology with AM/FM digital radio and MP3 compatibility, delivering NRR 24dB noise reduction for all-day job site use. This unit appears to be open-box/lightly used condition, with the headset shown intact in original packaging including soft conformable ear cushions, rotary tuning dial, SOURCE and FUNC control buttons, and antenna. Features include Safe Volume Control Technology, Audio Assist hands-free tuning, vented headband with removable padding for hat compatibility, and 3 customizable sound settings. The 3M WorkTunes Wireless earmuffs are compatible with non-Bluetooth devices via audio jack cable and require 2 AA batteries (not included); MPN 34-8717-3463-7 visible on box. Ships fast and securely. Check out our other listings!