The Bluetooth 4.1 enabled Tufftalk Lite is a lower profile and more cost effective version of the original Tufftalk. The lightweight headset allows users to communicate with 3 other workers over 800m, listen to music, even connect to your smartphone to take and make calls. Seamless Bluetooth intercom communication allows users to talk without interruption, with HD-quality speakers and Advanced Noise Control technology delivering audio that's clear in even the loudest of work environments. Product Specs: ATTENUATION 21dB INTERCOM 800 M / 880 YDS FOUR-WAY INTERCOM GROUP INTERCOM UNIVERSAL INTERCOM ADVANCED NOISE CONTROL VOICE PROMPTS FM RADIO SMARTPHONE APP