Howard Leight by Honeywell Impact Series Sound Amplification Hard Hat Electronic Earmuff (1010632)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Built-in directional microphones amplify voices， alarms and other ambient workplace sounds to a safe 82dB， providing more natural listening and enhanced communication</li><li>Actively listens and automatically shuts off amplification when ambient sound reaches 82 dB; earcups snap in place when you need them and swing back when you don’t</li><li>Compatible with a wide range of hard hats for optimal head and hearing protection; includes adapter for use with AO Safety， Bullard， Jackson， MSA and North hard hats</li><li>Snap-in ear cushions allow for easy maintenance and replacement; includes 2 AA batteries plus 3.5mm audio jack and connection cable for personal listening devices</li><li>Noise Reduction Rating 21; Recommended industries: aviation， farming， construction， lumber， steel， transportation， military/law enforcement， manufacturing， sporting， DIY projects， general contracting</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51KVpjTKjKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51XNkKVD2dL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/412vseOKNiL.jpg" noproxy>