3M PELTOR WS ALERT XPI Headband Headset MRX21A3WS6-AZ 3M ID UU010322954 Replaces MRX21AWS6-AZ | 3M ID UU009152602 The 3M PELTOR WS ALERT XPI Headset is the next generation protective communication solution. With Bluetooth wireless communication, noise-cancelling boom microphone, integrated FM Radio and level dependent function for ambient listening, the WS ALERT XPI Headset not only helps protect you against hazardous noise, but also makes it easy to make phone calls with both hands free in noisy environments. Features and Benefits: High attenuating hearing protector model: standalone headband Bluetooth MultiPoint Technology for connection to one or two external devices for hands-free talk and streaming Noise cancelling boom microphone for clear speech transmission in noisy environments Level-dependent function for ambient listening to help improve your situational awareness (limited to 82dB) Push-to-Listen feature to easily and instantaneously listen to your surroundings Built-in FM-Radio with radio volume limited to 82dB Voice guided menu system with announced FM-Radio frequencies Digital station search Ability to store up to 4 favourite stations Auto power off : The headset will turn off after 4 hrs of non-use to save battery Connectivity to Mobile App - Helps you to set up and navigate your headset via the 3M Connected Equipment Mobile App Technical Data: In the box: 1 x Headset, 2 x AA batteries (Alkaline), 1 x User Instruction. Operating Times: Approx 58hrs (FM radio and level-dependent, Approx 78hrs (Bluetooth streaming and level-dependent. Battery Type: AA batteries (Alkaline) Speakers: 27mm diameter, 100 Ohm Boom Microphone Type: Noise Cancelling electret microphone Weight (inclu. batteries): 411g