When the electronic ear plug headphone is switched on it is set at a safe 85 dB sound level and provides protection from loud external sounds while enhancing natural hearing. This allows the ear to hear important commands on the range and crucial environment sounds when hunting. Eight different volume increments are provided above safe 85dB initial power on level to optimize hearing in the field by providing up to 6X sound enhancement. In continuous noise environments the device should be used in passive mode for maximum continuous protection.Features: Noise Reduction Rating (NRR): 29dB Separate hear-through volume control Realistic natural hear-through functions with digital circuitry 9mm Dynamic range speaker 2x Omni-direction in-ear microphones Device actively listens and automatically compresses amplification when loud impulse sounds like firearms discharges exceed 85dB. USBC Rechargable with a charging time of 2 hours Unit Battery Type: 200mAh Lithium Battery Flexible moldable earhook 3 different ear tips for ideal ear canal fit

This Howard Leight Impact Sport Bluetooth Electronic Shooting Earmuff offers superior hearing protection for shooting while keeping you safely connected to environmental sounds. Digital sound compression provides a lightning-fast .5 millisecond reaction time (the interval between when a shot is fired and when the earmuff lowers the sound to a safe level). The 21 dB NRR (Noise Reduction Rating) makes the earmuff ideal for hunting and shooting at the range. Two high-gain omni-directional microphones deliver 5X sound amplification of low level frequencies. This allows you to hear important commands on the range and crucial environment sounds when hunting. Integrated Bluetooth technology allows the electronic earmuff to sync with your mobile device for seamless music streaming. You can also make safe hands-free phone calls and stay connected with others at the range or on the hunt. 0.5 MILLISECOND REACTION TIME: Extremely fast .5 millisecond reaction time ensures safe shooting hearing protection; digital sound compression reduces harmful noise from impulse sounds such as gun fire; Noise Reduction Rating (NRR): 21 dB QUICK-CONNECT BLUETOOTH 5.0: Easily sync to music player or mobile device for safe hands-free communication with others; 2 Mbps data speed is twice as fast as BT 4.2; includes separate volume controls for Bluetooth and external environment amplification SITUATIONAL AWARENESS: 5X sound amplification enhances low level frequencies like range commands conversation and forest sounds; 2 high-gain omni-directional microphones allow you to identify source of sound; recessed placement reduces wind noise LOW-PROFILE COMFORTABLE FIT: Air Flow Control Technology allows for a slim low profile ear cup to ensure firearm stock clearance; padded adjustable headband provides a comfortable custom fit; compact folding design for convenient storage KIT INCLUDES: Bluetooth earmuff rechargeable lithium ion battery & micro USB charging cable; automatic shut-off feature after 4 hours increases battery life; replacement ear cushions available