Completely waterproof and cord-free, these Bluetooth earplugs are our most versatile and innovative to date. With level-dependent Aware Technology, you can communicate with colleagues and listen for warning signals all while enjoying nonstop certified protection. ISOtunes FREE Aware gives you the freedom you want and the protection you need. Aware Technologyoffers complete situational awareness and protection from harmful noises. ANSI-certified 25 dB NRR OSHA-compliant hearing protection SafeMaxTechnology limits volume output to 85dB. Up to 13 hours of battery life Up to 25 additional hours with charging case IP67 durability for dust, sweat, and waterproof protection Background noise-reducing microphone for clear communication in loud environments Bluetooth 5.2 connects devices up to 30 feet. Siri/Google Voice Compatible Automatic Power Off after 2 hours without Bluetooth connection for battery conservation True Wireless Design ISOtunes FREE Aware comes with 3 pairs of Tall TRILOG