Walker's Isolator Digital Electronic Ear Buds deliver high-performance hearing protection and sound enhancement for shooters, hunters, and outdoor enthusiasts. With a 24dB Noise Reduction Rating, they shield your ears from harmful noise while allowing safe sounds to come through clearly. SAC (Sound Activated Compression) technology activates instantly in loud environments, ensuring reliable protection without cutting you off from important audio cues. The Sure-Lock fin and foam tip system provides a secure, comfortable fit, while dynamic speakers deliver crisp, clear sound. Ergonomic touch-surface controls make adjustments quick and easy. Built-in lithium-ion batteries offer up to 80 hours of use and recharge easily with the included micro-USB cable, so you're always prepared for your next outing. Noise Reduction Rating: 24dB Sound Activated Compression hearing protection Dynamic speakers for enhanced audio Earbud-style design protects and amplifies sounds Rechargeable lithium-ion batteries, up to 80-hour runtime Sure-Lock fin and foam tip system Three sizes of locking fins and tips included Includes micro-USB charging cable