Details VOICE OPERATED TRANSMISSION: Voice operated transmission (VOX) for hands free operation in high noise environments BUILT-IN PROGRAMMABLE ANALOG AND DIGITAL TWO-WAY COMMUNICATION RADIO: Headset-to-headset communication with ability to be integrated with similar professional radio communication systems. Up to 70 programmable radio channels NOISE CANCELING, WATER AND DUST PROOF SPEECH MICROPHONE (IP67): Helps provide clear communication in noisy and demanding environments HEARING PROTECTION: Noise attenuating ear cups help provide hearing protection in environments with potentially hazardous noise COMFORT OPTIONS: Headset is available in both headband, neckband and hard hat attached configurations Among the features of the 3M™ PELTOR™ WS™ LiteCom Pro III Headset, the analog and digital two-way radio enables clear, hands-free communication in high levels of noise and integrates seamlessly into your existing two-way radio system. Additionally, with Bluetooth® multipoint functionality, workers can be wirelessly connected to two mobile devices. As an extra benefit, the wearer has the ability to stay protected, aware, and able to communicate face-to-face while never removing their hearing protection thanks to level-dependent functionality. Specifications Attenuation Rating: 25 dB Audio Type: Communication Auxiliary Port: 4-pin XLR Battery Life: 11 Hours Battery Type: Rechargeable Li-ion Pack Bluetooth: Yes Brand: PELTOR™ Built in 2-Way Radio: Yes Built In FM and or AM Radio: No Communication Direction: Two-way Communication Type: Environmental Listening, Bluetooth, External Audio Input, Two-way Radio Communication via External 2-Way Radio: Yes Connection Type: Wireless Connector Size (Imperial): 0.062 in Connector Size (Metric): 1.6 mm CSA Class: CSA Class AL External Audio Input: Yes Features: Dynamic Differential Microphone, Impulse Noise Protection, Boom Microphone, Level Dependent Function, Supports Bluetooth A2DP Profile for Streaming High