The bluetooth passive muff is a passive hearing protective device that features bluetooth connectivity to mobile devices.It has an adjustable boom mic with wind screen, auto shut off 2/4/6 hours, and is powered by 2 (aaa) batteries, batteries included.

Type: Electronic Earmuff
Color: Black Ear Cups w/Black Band
Nrr: 26 dB
Quantity: Yes
Style: Over the Head
Battery: AAA
Material: Polymer