These bluetooth earphones feature a comfort-fit earhook and chrome-plated brass ear stem. ANSI-certified 27 dB NRR OSHA-compliant hearing protection with 85 dB volume limit. It has 16 hours of run-time and is dust, water, and sweat proof with a noise-isolating microphone for crystal clear calls in loud environments. These headphones come with 4 pairs of ISOtunes foam eartips, and 1 pair of silicone triple-flange eartips, USB cable, 2 cable managment clips, 1 alligator clip, and storage case.
