Klein Tools AESEM1 Hearing Protection Safety Earmuffs with Bluetooth Technology, NRR 20dB, 70-Hour Runtime

OVERSIZED BUTTONS: Straightforward 3-button design ensures users can easily identify and navigate with gloves, CALL WITH CONFIDENCE: Environmental noise cancelling microphones eliminate background noise for your callers, BUILT TOUGH: Dust and water-resistant IP54-rated enclosure with 6.6-Foot (2 m) drop protection makes these earmuffs ideal for harsh environments