EAR PROTECTION SET: 3-pack of electronic earmuffs keeps your hearing safe at the range with frequency-tuned, noise-dampening technology. BALANCED SOUND: Full-range, dynamic HD speakers for clear, balanced noise with 0.02-second sound-activated compression reaction. COMPACT & COMFORT: Metal wire-frame headband folds for easy storage, transport, and comfortable wear for extended shooting sessions. DESIGN: 2 omnidirectional microphones create low noise and frequency tuning for natural sound clarity; Operates on 2 AAA batteries (included).