Peltor? Racing Communication Plugs features include: 
? High quality in-ear speakers with noise attenuating plugs
? Small size for comfortable use with Motorsport helmets 
? CE-approved according to EN 352-2:2002 and EN 352-6:2002 
? Plugs are replaceable for hygienic reasons 
? Comes with two different types of earplugs - E-A-R? Classic? and E-A-R? Ultrafit? earplugs 
? RCA plug for quick blind mounting 
? Connect to Peltor? Intercom or straight to Communication radio 
? Can also be used with throat microphone and FL50** PTT.