Walker?s Firemax are USB-C rechargeable earmuffs with full dynamic range speakers and 4 frequency modes for ultimate clarity and protection in varying environments. The slim, low-profile design and tacti-grip headband provide a secure hold during periods of movement or physical activity. A 3.5mm audio jack allows connection to compatible devices including phones and walkie talkies.

Features:Rubber tacti-grip headband;4 frequency mods: universal, clear voice, high frequency boost, power boost;Sound activated compression;20-23 dB NRR;200 hours of battery life - USB-C Rechargeable