Howard Leight™ Sync® Wireless earmuff is the first communication earmuff offered in the Honeywell Howard leight sync family portfolio. This earmuff was designed for the worker that needs to stay connected, but also need hearing protection in areas with high environmental noise. The Sync Wireless earmuff can connect wirelessly to most mobile phone devices via Bluetooth®. Making the Sync Wireless earmuff easy to connect and easy to use. The Sync Wireless earmuff joins the existing sync family of electronic earmuffs from: sync Stereo-connects to mobile phone or MP3 for listening only, sync AMFM radio for listening only, sync electo-FM radio, streaming and hear through.