The 230-EHP by Radians Inc. is a high-tech earmuff known as the R-3200 Dual Mic. This state-of-the-art electronic sound amplification tool protects your ears with two independent microphones designed to amplify quiet noises while expertly compressing sounds that exceed safe levels.In addition to being a practical safety device, the R-3200 Dual Mic earmuff is also designed for convenience. It includes a compact folding feature for straightforward storage, and a 3.5mm stereo input jack and patch cable for compatibility with most smart devices. Simply connect your smartphone or digital audio player to experience playback capability.The earmuff is equipped with an LED ON/OFF indicator light which serves to prevent unintentional battery discharge. Additionally, it features a premium adjustable headband for optimum comfort. The R-3200 Dual Mic electronic earmuff is not just a safety tool, but a device that delivers a fusion of utility, comfort, and technology.