With a new design and four detachable cables, this Galaxy Audio ESM4 single-ear headset bundle is a smart, economical choice. The ESM4's super lightweight design makes wearing the microphone more comfortable, even for long periods of time, without using excessive pressure to hold the microphone in place. The soft microphone stem allows for easy adjustment of the microphone's position as you wear the headset. These single-ear headset microphones work great with many wireless transmitters, like Galaxy Audio wireless microphone body packs. The detachable cables can be wired to work with transmitters made by Galaxy Audio, Shure, Sennheiser, AKG and Audio-Technica, as well as most other brands of wireless microphone systems. You can also use the Galaxy Audio ESM4 single-ear headset microphone with most PC sound cards (adapter not included).