Electronic Shooting Earmuffs Noise Reduction Sound Amplification Green Description: Noise reduction reception function, converts high decibel noise and clicks collected at 360 degrees into human hearing acceptability Binaural microphone automatically processes noise above 85 decibels, noise reduction coefficient is 25NRR The 3.5mm dual-channel audio interface can be connected to audio equipment such as mobile phones and computers Made with the highest quality microprocessor to maintain pleasant sound quality when hunting outside, you can still enjoy the music while using our shooting earmuffs The size of the headband is adjustable according to your needs, and the foldable design is easy to carry and store Size chart: Folded: 125x112 cm / 492 x 441 inch Unfold: 84 x 185 cm / 331 x 728 inch The package includes: 1 pair of electronic shooting earmuffs