The D-Mic 40 SL is a directional gooseneck microphone featuring a 40 cm flexible neck for optimal positioning in conference environments. It employs a back electret condenser transducer with unidirectional (cardioid) polar pattern, delivering superior noise rejection in high ambient noise conditions. Constructed with brass materials in matt black (RAL 9011), this microphone measures 41.5 × 2.5 × 2.5 cm with a weight of 120 g. It operates on 3.3 V DC power with minimal current draw (0.5 mA without LED). The unit incorporates a tri-color status ring (dark/off, red/active, green/request) and demonstrates exceptional immunity to mobile phone interference. With a maximum SPL of 110 dB and signal-to-noise ratio exceeding 67 dB(A), it produces natural audio quality that reduces listener fatigue during extended meetings. The microphone connects via screw lock interface for integration with delegate and interpreter units.