High Cost Performance ratio, completly invisible CIC. Manually-controlled types are always easy and convenient.

1.4Channels & 8Bands

2.Intelligent Noise Reduction System(9DB)3.Automatic Feedback Compression DFS System 4.Primary Wind Noise Suppression Management System5.Primary Loud Sound Block6.Multi-channel Expansion(4 Channels)7.One Program8.Automatic Gain Control-Output for Hearing Protection9.Adaptive Volume Control Among different Environments10.Ultra-low Background Noise11.Trimmer VC12.Clear Listening,Rich Middle and High Frequency Sounds

13.There will be two kinds of the ear dome in the package.Each has three sizes.