Attenuating hearing protector comes in two models: headband or a safety helmet attachment Bluetooth technology for connection to an external Bluetooth device allows for hands-free talking and streaming Noise-cancelling boom microphone for clear speech transmission in noisy environments Level-dependent function for ambient listening to help promote auditory situational awareness Connection to an iOS and Android compatible mobile app, 3M Connected Equipment, to more easily set-up and adjust the headset. The app is available to download from App Store and Google Play. Mobile app allows you to receive reminders when to change replacement cushions (hygiene kit) and choose the frequency of these alerts Push-to-Listen feature to easily and instantaneously listen to your surroundings Suggested Applications