ISOtunes LINK 2.0 EN352 Ear Defenders: Bluetooth Hearing Protection

MASSIVE BATTERY LIFE: Included rechargeable lithium ion battery provides 50 hours of battery life on a single charge. Optional AAA batteries (3) provide up to 100 hours of battery life (not included) UPGRADED COMFORT: Padded headband insert provides improved comfort. Raised buttons provide easy and convenient controls. NOISE ISOLATING HEARING SAFETY: EN352 Certified 30 dB Single Number Rating (SNR) to limit hearing damage in loud work environments. SAFEMAX TECHNOLOGY: 82 dB volume limiter ensures that your music is always at a safe listening level. WIRELESS CONNECTIVITY: Listen while you work without the wires using upgraded Bluetooth 5.0 technology. BUILT TO LAST: Durable collapsible design with comfort fit ear pads and IPX4 water resistance.