STIHL Dynamic Bluetooth® Hearing Protection combines exceptional hearing protection with the convenience of Bluetooth® technology. Designed with a Noise Reduction Rating (NRR) of 24, these comfortable, padded earmuff-style protectors effectively safeguard your hearing while allowing you to stream music, receive phone calls, and talk hands- as you work. The built-in microphone and ergonomic, rubber-coated power button make it easy to answer and end calls, even when wearing gloves. Music automatically pauses when you receive a call, ensuring seamless functionality. With up to 38 hours of audio streaming or 100 hours of standby time, the rechargeable battery charges fully in just three hours using the included USB cable. Built for durability, all electronic components are sealed to protect against dust, sweat, and moisture, making these hearing protectors reliable for demanding environments. Model Number: 0000 884 0519