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