The beige d:fine Core 4288 Directional Flex Headset Mic, 100mm Boom with MicroDot from DPA combines the sound of the d:fine 4088 directional capsule and Core amplifier in a lightweight and flexible two-ear headset. It can be used when miking needs to be fast and easy, and where the person wearing the microphone will barely feel the presence of it, such as in conference, speech, and active live performance applications.
The cardioid polar-patterned Core 4288 offers a 4 dB increase in dynamic range and a 14 dB decrease in THD (total harmonic distortion) over the Legacy version and is ergonomically designed to fit comfortably. It easily adjusts to fit any ear size and head shape, while at the same time, it mounts securely and is hardly visible. By rotating the boom and the ear hook, the microphone can be used on either the left or the right ear. In addition, the connector splits the cable from the microphone boom allowing you to swap broken cables and/or transmitter connectors quickly. Finally, it includes a makeup cover, four windscreens, and a pop screen.
Pristine audio quality
Lightweight and flexible
Easy mounting to the left or right
Minimal visual impact
Resistant to humidity
Flexible adapter system fits most professional wireless systems
In the Box
DPA Microphones d:fine Core 4288 Directional Flex Headset Mic, 100mm Boom with MicroDot (Brown)
4 x Foam Windscreens
ID Rings and Cover
Clothing Clip
Makeup Filter

Polar Pattern Cardioid
Principle of Operation Pressure gradient
Cartridge Type Pre-polarized 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) <1% THD up to 123 dB SPL peak
<1% THD up to 120 dB SPL RMS sine
Dynamic Range Typical 97 dB
Maximum Sound Pressure Level (SPL) Peak Before Clipping: 144 dB
Output Impedance 30 to 40 O
Cable Drive Capability Up to 984' (300 m)
Connector a Hardwired TA4F Connector for Shure Wireless Systems
Temperature Range 14 to 113°F (-10 to 45°C)
Cable Length 3.9' (1.2 m)
Dimensions (diameter x L) 0.25 x 0.50" (5.40 x 11 mm)
Weight 0.5 oz (14 g)