ISOtunes LINK 2.0 Bluetooth Earmuffs: Upgraded Wireless Hearing Protection with 50 Hour Battery Life and 25 dB Noise Reduction Rating

Earmuffs. Done Better. Featuring a padded headband cushion, up to 50 hours of battery life and an optional boom microphone (sold separatelyfor crystal clear calls, LINK 2. 0 is the Bluetooth earmuff you've been waiting for. New boom mic* attachment for clearer calls in loud environments (SOLD SEPARATELY New raised buttons for easy navigation Improved battery life up to 50 hours Improved Bluetooth 5. 0 Vented headband with new comfort foam headband Memory foam ear cushions ANSI certified 25 dB NRR OSHA compliant hearing protection SafeMax Technology limits volume to 85 dB Optional AAA battery (3use for up to 100 hour battery life (AAA BATTERIES NOT INCLUDED IPX4 sweat and water resistance Background noise reducing microphone for clear calls in loud environments Siri/Google Voice compatible ISOtunes LINK 2. 0 comes with a rechargeable lithium ion battery and micro USB charging cord.