The Caldwell E-Max Shadows Pro In-Ear hearing protection offers advanced features that set it apart from other models. With Bluetooth connectivity these earplugs allow for seamless integration with your device providing up to five hours of uninterrupted music phone calls and communication all compatible with EMAX Comms and Links. The intuitive push-button controls make it easy to adjust ambient noise change volume answer calls and even control Siri without hassle. A sleek rechargeable storage case features an LED Battery Level Indicator for each ear ensuring you always know when your EMAX are ready for use. These earplugs come with multiple size options to ensure a perfect fit making them an essential accessory for both range enthusiasts and everyday users seeking superior hearing protection.