The Howard Leight 1030110 comes along with a dedicated audio cable, which can easily be connected to your mp3 player or smartphone. In addition, the developers have introduced a unique volume management technology, where the users will be able to manage the output volume according to their specific needs and requirements. This product is associated with a noise reduction rating of 25. Therefore, you will be able to use it in order to stay away from low and medium levels of hazardous noises. On the other hand, Howard Leight 1030110 Sync Noise-Blocking Stereo Earmuff has the ability to deliver a superior audio quality to the users as well. You don’t need to use any batteries to operate it.