The DM1.0 microphone displays a tight cardioidpattern to minimise feedback problems and effectively reject signals not originating directly in front of the mic capsule.
麦克风的DM 1.0心紧显示模式，以减低反馈的问题，不能有效地拒绝信号源自胶囊的麦克风前。
2
The DM2.0 is a hand held dynamic microphone featuring a super-cardioidpattern to minimize feedback and effectively reject signals not originating in front of the microphone capsule.
该DM 2.0是一个动态的手持麦克风具有超心型图案，以尽量减少和有效的反馈信号不拒绝在话筒前起源。
3
The WH20 has a cardioid (unidirectional) pickup pattern.