Swiss Tech Tonen Electronic Hearing Protection with Bluetooth, Rechargeable, NRR 25dB

13-level Real Active Listening (RAL) mode enhances sound up to 25dB Sound-activated compression function auto-suppresses damaging high-level noise 40-hour USB-C rechargeable lithium-ion battery, fully charges in 2.5 hours Bluetooth for music streaming and phone calls Noise Reduction Rating (NRR) of 25dB 2-channel separated volume controls for media and hearing enhancement functions Auto shut-off function to save battery life Covered input and output ports for dust/debris protection Low-profile comfort ear cups and padded comfort headband Premium rubberized coating Hunting Ear Protection Shooting Ear Protection