The CT-CombatCom System is a new lightweight audio-communications accessory for connecting to two-way radios for military, police and security forces. It is costomized specially to the needs of these target groups. The system is available in a one-sided and a two-sided version and provides a high level of speech and wearing cmfort. Because the speaker does not seal the ear, all important surrounding noises can always be perceived. This also avoids teh health complications in connection with dirt of ssweat that can arise with "in-the-ear soultions". At the same time the loudspeaker of the CeoTronics product is designed so that even if a linear protective earplug is worn this does not impair communicaitons. The design and colors are harmonized particularly to helmets and other operational equipment.