TRUSCO earmuffs with built-in automatic sound-isolating speaker TAE-80 1 piece

Catalog number: TAE-80 Features: ●When the volume knob is turned ON, sound can be heard from the built-in speaker, so you can have a smooth conversation even while wearing the earmuffs. ●If the speaker is ON and a noise level of 80 dB or more is detected, it will automatically turn OFF, so the functionality of the earmuffs will not be impaired. Specifications: ●Width (mm): 140 ●Height (mm): 175 ●NRR value (dB): 22 ●ANSI (American National Standards Institute) certified product ●Usage time (approximate): 2 AA batteries (sold separately) Manganese: 250 hours Alkaline: 600 hours Material/Finish: ●Earm guards: ABS resin, polyvinyl chloride (PVC) ●Band: Polyvinyl chloride (PVC), polyacetal (POM) Caution: ●Batteries are sold separately. ●Remove the batteries when not using for a long period of time. (To prevent battery leakage)