Electronic Earmuffs, Bluetooth, Wireless, Light Weight Ear Protection, Adjustable Padded Head Band, Replaceable Ear Pads, Bluetooth Sync Button, Omnidirectional Microphone, 3.5mm Audio Input, NRR22 Noise Reduction Rating, Able to make calls and listen to music, Amplified Low Level Sounds, Suppresses Harmful Noise Above 82 DBA