The ISOtunes Sport CALIBER BT Shooting Earbuds OPMOD Bluetooth Hearing Protection is the perfect addition for any shooting enthusiast. These earbuds provide superior hearing protection with their passive and electronic features, noise-isolating mic, and active noise reduction (ANR) technology. The earbuds are designed to be lightweight and comfortable to wear, with a battery life of up to 13 hours and a wireless range of up to 30 feet. The earbuds come with a USB-C charging cable, replacement foam and silicone eartips, protective charging case, and charging case lanyard. They are approved by CSA, OSHA, and ANSI, and are compatible with lithium-ion batteries.