Bluetooth Electronic Ear Protection Ambient Noise Reduction Headphones Features: Ambient Awareness：The electronic shooter ear plugs amplify the surrounding sounds with the built-in omni-directional microphone making it easier for you to hear what's going on around you and have conversation with others while the ear plugs are inserted. 2-level Adjustable Ambient Gain：You may adjust the level of amplification based on your personal preference and the environment you're in. You can also turn off amplification . Protection from Impulse Noise： The protects hearing, artillery noise, explosions and similarly impulse sounds , drop hammers and riveting. The device is designed to electronically suppress noise above 85dB using built-in microphone and advanced audio processing. 1ms cut-off latency allows instant and reliable hearing protection against impulse noise. IPX4 Sweat-proof Design：This is designed to withstand sweat and light snow / rain, perfect for outdoor use in construction. Wide Universal-fit：The ear plugs simply sit in your ear canal with no pressure points as compared to the conventional universal ear plugs. This provides maximum comfort for hours of prolonged use ideal for both indoor and outdoor use during travel. Specification: Function: pick up noise reduction, hearing protection Material: ABS+PC Weight: charger compartment about 53.4g / headphones (pair) about 17.2g Bluetooth version: V5.3 (for playback with Bluetooth function) Battery continuous use time:: about 8 hours Charging interface: Type-C Battery capacity: 70 mAh (single side headphones); 600 mAh (charging compartment) Applicable scene: suitable for shooting training, manufacturing, construction and other noise environment Package Includes: 1 Pair* Headset(No included other products )