These bluetooth earphones feature true wireless technology, ANSI-certified 27 dB NRR OSHA-compliant hearing protection with 85 dB volume limit. It has 7 hours of run-time with an additional 14 hours with charging case. Dust, water, and sweat proof with a noise-isolating microphone for crystal clear calls in loud environments. These headphones come with 3 pairs of ISOtunes foam eartips, 3 pairs of silicone double flange eartips, usb-c cable, and portable charging case.
