The DPA 4288 Directional Flex Headset makes use of all of DPA’s vast experience in microphone design and manufacturing, providing the best sounding directional head-worn microphone available today.

✔️ Lightweight and flexible

✔️ Resistant to humidity

✔️ Flexible adapter system fits most professional wireless systems



SKU: DPA-4288-DC-F-X00-LH Categories: , Tags: , , ,


The 4288 Directional Flex Headset Microphone combines the legendary sound of the 4088 Directional Capsule with a lightweight and flexible headset system. It offers accurate, natural voice intelligibility and very high SPL capabilities. Users can both speak and sing into the mic with no hint of distortion.

The 4288 provides excellent off-axis rejection in high-SPL situations. It efficiently suppresses distant sound sources making it perfect for demanding live performance environments. In high-SPL events, or when feedback is a concern, the 4088 Directional Capsule will tackle these challenges with ease. The bass response is designed for optimal linearity at 2-3 cm (1 in) from the sound source. This means that the bass roll-off will be relatively prominent at a greater distance – a paramount factor when it comes to rejection of background noise and in the fight to avoid feedback. The microphone capsule is also optimised for low distortion as well as humidity resistance.

Two boom lengths are available to accommodate different applications and head sizes: 100 mm (3.9 in) and 120 mm (4.7 in). The 120 mm (4.7 in) is the standard choice for most users. To avoid “popping”, the capsule should not be placed directly in front of the mouth.


All CORE by DPA technology microphones are IP58 certified. This durability is achieved through a number of defense mechanisms:

1.  Water-repellant nano-coating of the cover and housing
2.  Hermetic sealing of the sensitive amplifier at the core of the mic
3.  Dual gold plating of the diaphragm


Named for its “heart shaped” polar pattern, a cardioid microphone has the most sensitivity at the front and less from the sides and the back. They come in many variations – with wider or narrower angles of sensitivity (supercardioid, hypercardioid, wide cardioid etc.). Although cardioids also pick up sound coming in from the sides, this off-axis sound will normally be more or less coloured and dampened. The unique DPA capsule technique, however, skips the colorisation of the sound coming from the sides or the rear of the mic and just reduces the sensitivity to these angles, and thereby, offers perfect sound stages. The amount of dampening depends on the exact specifications of the mic.

A cardioid microphone is, by definition, dampened -6 dB at the 90°side entry of the microphone but for many, the word cardioid generally covers mics with a directional pattern versus omnis, which pick up sound from all directions.

Due to their nature, directional mics are often used on the live stage – both during concerts as well as spoken-word events, to capture the focused sound of an instrument or voice. The narrow angle of sensitivity helps to minimise the bleed from other sounds on a busy stage. One thing to note with cardioid mics is the proximity effect. This causes an increase in bass response the closer the microphone is moved to the sound source. Therefore, check mic specs for the stated distance of measured flat frequency response when choosing a mic. In addition, cardioid mics are far more sensitive to wind, pop and handling noises, so be sure to take precautions to guard against this.


The adapters for wireless systems give you flexible, simple and affordable possibilities. You are no longer bound to one wireless system. As circumstances change, you can just switch your adapter, instead of incurring the cost of a completely new microphone. When you make the switch, you won’t hear any loss or change in sound quality.

DPA’s miniature microphones work with all leading wireless mic solutions, such as Lectrosonics, Sennheiser, Shure, Sony, Wisycom, Zaxcom and many more. DPA Microphones’ ingenious adapter system is one of a kind in the industry. It protects your investment in fantastic sound for years to come.

Select Colour

Beige, Black, Brown


Directional pattern Cardioid
Principle of operation Pressure
Cartridge type Pre-polarized condenser
Frequency response 20 Hz – 20 kHz
Effective frequency range ±2 dB, Near field 2-3 cm (0.8 – 1.2 in)

100 Hz – 20 kHz (4 – 6 dB soft boost at 15 kHz)

Sensitivity, nominal, ±3 dB at 1 kHz 6 mV/Pa; -44 dB re. 1 V/Pa
Equivalent noise level, A-weighted Typ. 26 dB(A) re. 20 µPa (max. 28 dB(A))
Equivalent noise level, ITU-R BS.468-4 Typ. 38 dB (max. 40 dB)
Distortion, THD < 1% – Legacy 120 dB SPL RMS, 123 dB SPL peak
Distortion, THD < 1% – CORE 134 dB SPL RMS, 137 dB SPL peak
Dynamic range – Legacy Typ. 97 dB
Dynamic range – CORE Typ. 111 dB
Max. SPL, THD 10% 144 dB SPL peak
Rated output impedance 30 – 40 Ω
Cable drive capability Up to 300 m (984 ft) with DAD6001-BC XLR Adapter
Power supply (for full performance)

For wireless systems: Min. 5 V – max. 10 V through DPA adapter

With DAD6001-BC: P48 (Phantom Power). Will work from 12 V

Connector MicroDot
Colour Black, beige or brown
Weight Single Ear: 10 g (0.35 oz)
Microphone diameter/Microphone length 5.4 mm (0.21 in)/12.7 mm (0.5 in)
Cable length 1.3 m (4.3 ft)
Cable diameter 1.6 mm (0.06 in)
Polarity Positively increasing sound pressure produces positive going voltage on MicroDot pin
Temperature range -40°C to 45°C (-40°F to 113°F)
Relative humidity (RH) Up to 90%


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