HIGH-PERFORMANCE Your hearing will be safe with the Advanced Digital Circuit, offering blazing fast response time for optimal hearing protection; Featuring built-in Bluetooth technology, these shooting earmuffs seamlessly connect with mobile devices. ENHANCED HEARING Featuring 2 Hi-Gain Omnidirectional microphones, these hunting earmuffs amplify critical sounds around you; With the active dynamic sound suppression technology, these 21db NRR range shooting muffs offer the ultimate auditory experience. SOUND-ACTIVATED COMPRESSION Boasting a 0.02-second sound-activated compression, these outdoor hunting muffs swiftly compress loud noises to safe levels; This enables clear communication, ensuring comfort & convenience in any shooting environment. COMFORT REDEFINED The mesh moisture-wicking headband ensures optimal cooling during long, hot days; With comfort gel earpads & a durable rubberized coating, these electronic earmuffs offer a snug fit and enhance your range shooting experience. 21 dB noise reduction rating. Advanced digital circuit. Active dynamic sound suppression. Hi-gain omnidirectional microphones. Dynamic wind noise reduction. Superior clear digital sound. Premium cooling headband. Gel-filled ear pads for cooling and comfort. Audio input jack. Battery 2 'AAA' batteries (included).