ISOtunes AIR DEFENDER Bluetooth Earmuffs: Comfortable Hearing Protection

Ultra-lightweight Memory foam ear cushions and headband ANSI-certified 24 dB NRR OSHA-compliant hearing protection SafeMax™ Technology limits volume to 85 dB Up to 40 hour battery life IPX4 sweat and water resistance Background noise-reducing microphone for clear calls in loud environments Bluetooth 5.0 Aux input for nonstop listening