The 4088 CORE Directional Headset Microphone with mini-jack connector for Sennheiser Wireless (small) from DPA Microphones provides excellent off-axis rejection in high-SPL situations. It efficiently suppresses distant sound sources making it perfect for demanding live performance environments where background noise and feedback are concerns. It handles high-SPL events with ease. The bass response is designed for optimal linearity at 1 in. from the sound source. This means that the bass roll-off will be relatively prominent at a greater distance, which is an important factor when it comes to rejection of background noise and in the avoiding feedback.