Headphones 3M™ PELTOR™ WS™ ALERT™ X with Bluetooth® technology and noise canceling microphone connect to your mobile phone for hands-free calling and streaming in noisy environments. The headphones feature a controlled attenuation function for ambient listening and sync with a mobile app, so they can be set up and adjusted by users with ease. Automatic shutdown after 4 hours of non-use, 70h battery life. 3M ™ PELTOR ™ WS ™ ALERT ™ X headset with Bluetooth® technology and noise canceling microphone. Equipped with controlled attenuation function for ambient listening and synchronize with a mobile app. Automatic shutdown after 4 hours of non-use, 70h battery life. Features: • Attenuated hearing protection device • Replaceable pads and covers (hygienic kit) • Bluetooth® technology for connection to an external device that allows hands-free phone calls and music streaming • Noise-canceling microphone for clear voice transmission in noisy environments • Controlled attenuation of ambient listening to facilitate situational awareness • Connection to mobile app compatible with iOS and Android, 3M ™ Connected Equipment, to configure and adjust the headphones more easily (downloadable from the App Store and Google Play) • The mobile app allows you to receive pads replacement reminders (hygiene kit) and to choose the frequency of these alerts • Push-to-Listen function to easily and instantly hear your surroundings • Guided feedback from the item after adjusting the setting. There is no need to remove the headphones for any adjustments • To extend battery life, the headphones automatically turn off after four hours of inactivity