The black d:fine 4088 Directional Headset Microphone with a Microdot Termination from DPA Microphones is a headworn cardioid microphone with a dual-ear design that can be used for various performing talent applications. Its small, 0.25" diameter allows for discreet use while its 0.5-ounce body allows for comfort while being worn. 5 foam windscreens are included.
| Polar Pattern | Cardioid |
| Principle of Operation | Pressure gradient |
| Cartridge Type | Pre-polarised condenser element with vertical diaphragm |
| Frequency Range | 100 Hz to 20 kHz (4 to 6 dB soft boost at 15 kHz), ± 2 dB |
| Sensitivity | 6 mV/Pa, -44 dB re. 1 V/Pa (nominal, +/-3 dB at 1 kHz) |
| Equivalent Noise Level | A-Weighted: Typical: 26 dBA re. 20 µPa Maximum: 28 dBA ITU-R BS.468-4: Typical: 38 dB Maximum: 40 dB |
| S/N Ratio | 68 dBA, 1 kHz at 1 Pa (94 dB SPL): |
| Total Harmonic Distortion (THD) | |
| Dynamic Range | Typical 97 dB |
| Maximum Sound Pressure Level (SPL) | Peak Before Clipping: 144 dB |
| Output Impedance | 30 to 40 Ω |
| Cable Drive Capability | Up to 984' (300 m) |
| Connector | Microdot termination |
| Temperature Range | 14 to 113°F (-10 to 45°C) |
| Cable Length | 3.9' (1.2 m) |
| Dimensions (Ø x L) | 0.25 x 0.50" (5.40 x 11 mm) |
| Weight | 0.5 oz (14 g) |
