This 3M PELTOR wireless communication accessory is ideal for protecting your hearing without sacrificing communication. This instantly turns your X series earmuffs into a Bluetooth wireless communication device with 8 hours talk/streaming time. Compatible with all X series earmuffs. Please Note: Earmuffs sold separately The 3M PELTOR Wireless Communication Accessory, combined with the X Series Earmuffs, can help keep you protected while allowing you to communicate in noisy environments. Take that important call without stepping away your work. The Wireless Communication Accessory easily attaches to your existing 3M PELTOR X Series earmuffs. With Bluetooth technology, the Wireless Communication Accessory allows you to stay connected to your smart phone throughout your work day and have hands-free conversations. Quickly set up the Bluetooth connection with the auto pairing and connecting feature. The single button operation makes taking a phone call easy, even while wearing gloves. With the integrated speaker inside the X series earmuff, and the noise cancelling microphone, the wireless communication accessory has been designed for talking in noisy environments.