$13.00 MSRP

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Best for assistive listening applications where access to ambient or environmental sound is desired, the LA-404 Universal Single Ear Bud is the ideal solution. The comfortable ear bud design sits just inside the ear to directly deliver outstanding audio clarity without interfering with external sounds, and the universal design allows it to work for all listeners. Disposable foam cushions (LA-163) are also available for easy replacement and added user comfort.

The LA-404 can be used with either our integrated neck loop/lanyard that is worn around the neck, or connected via the included 3.5mm extension cable to a receiver worn on a belt clip or in a pocket. The hard plastic construction is both durable and easy to clean, and each ear bud can be quickly disinfected using our Listen disinfecting wipes (LA-901 or LA-902).


One (1) LA-404 Universal Single Ear Bud
One (1) LA-434 Earphone Extension Cable



  • Single-ear design allows ambient or external noises to be heard
  • Universal design to fit large or small ears comfortably
  • Compatible with neck loop/lanyard or can be used with receivers worn on belt clips or carried in a pocket
  • Durable plastic construction for long life and easy cleaning or disinfecting
Configurations & Architectural Specs

Architectural Specs

The LA-404 Universal Single Ear Bud shall provide an audio response of 20 Hz to 20 KHz with an impedance of 32 ohms. The device shall be easy to put on, easy to clean and shall provide a cable length of 13 in (33 cm) that reduces cable tangling. The device shall have replaceable foam cushion. The LA-404 is specified.

Product Specifications
Specification LA-404


Frequency Response 20 Hz - 20 kHz
Impedance 32 ohm +/- 15% @ 1 kHz
Rated Power Input 10 mW
Max Power Input 20 mW
Output Sensitivity 82 dB +/- 4dB @ 1 kHz, 1 mW


Connector/s Male 3.5 mm (mono)


Color Dark Gray
Shipping Weight 1.0 lbs. (454 g)
Cable Length 13 in. (33 cm), extension cable is 28 in. (71 cm)
Weight 0.32 oz. (9 g)


Standards RoHS
Used With
Q What is Listen Technologies product warranty?
A Click for Listen's product warranty.
Q Why is the cable length of LA-404 only 13 inches (33 cm)?
A The product is designed to work with the LA-430 lanyard allowing a shorter cable length because the connector is on the lanyard. This reduces the problem and frustration of cable tangling.
Q What is the part number for the replacement cushions for the LA-404?
A The part number for the replacement ear cushion is LA-163. There is a quantity of 20 in each package.
Q Can this accessory be cleaned?
A Yes, it can be cleaned. Many venues prefer to use the LA-163 foam cushions, as the foam can be taken off and replaced quickly and easily.
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