Single-Ear Mono Earbud w/ 3-Foot Cord

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Below are the available bulk discount rates for each individual item when you purchase a certain amount

  • Buy 2 - 4 and pay only $6.50 each
  • Buy 5 - 9 and pay only $5.95 each
  • Buy 10 or above and pay only $5.00 each

Single Ear Mono Earphone with 3-foot Cord • Part No. M-102-3

  • Mono earphone with single earpiece has a 3-foot long cord and 3.5mm 2-conductor male plug
  • Commercial grade mono earphone for consumers, personal use and business buyers
  • Mono earphone with volume discounts priced for commercial use, entertainers, businesses, government agencies, schools, churches, translation systems and security services
  • Silicone rubber eartip comfortably blocks out noise and has excellent overall audio clarity
  • Compatible with most hearing assist products, such as Williams Sound, Nady Pocket Talker Ultra, Pocket Talker Pro, Telex Soundmate

CLICK HERE to view/download M-102-3 sales literature

Single Ear Mono Earphone with 3-foot Cord • Part No. M-102-3

Single mono earbud style earphone has one earpiece and may be worn in either ear

  • This mono headphone has a 3-foot cord – We also offer a similar model with a 6-foot cord
  • Reasonably priced mono earbud style earphone
  • Silicone rubber eartip makes earbud very comfortable to wear for long periods
  • Rubber tip helps to block out extraneous noise, providing superb comfort and audio clarity
  • Rare earth magnet design produces excellent quality audio
  • Quantity discounted pricing available for those buying this earphone in large quantities
  • Earbuds are individually packaged in plastic bags
  • Scan Sound offers replacement silicone rubber eartips for these earphones so the earphones can be hygienically shared among multiple users
  • Fits most portable electronic devices, such as cassette players, portable TV's, AM/FM radios,
  • 3-foot cord with two conductor mono miniature 1/8-inch (3.5mm) plug
  • Great for hospital televisions and audio-visual labs non-stereo use
  • Frequently used with language translation and hearing assistance systems such as Williams Sound and Nady
  • High quality earbuds are designed with commercial quality, and they are very affordable with special tiered pricing for those buying them in bulk

Specifications of the M-102-3 MONO Earphones

  • SKU#: M-102-3
  • Driver Unit: 13mm
  • Magnet: Neodymium
  • Impedance (+/- 10%): 28 ohms
  • Sensitivity: 105 dB
  • Frequency Range: 20~20,000 Hz
  • Maximum Input: 1mW
  • Max Pwr Handling: 5mW
  • Cord Length 3-feet
  • Plug Type: Mono, 2-Conductor 3.5mm Nickel Plated Plug (1/8-inch diameter)
  • Eartip: Rubber replacement eartips are available from Scan Sound
    • P/N RT-1103 - 6 Rubber Earbud Eartips - Black, Medium Size
    • P/N RT-210B-6 - 6 Small Size Black Silicone Rubber Ear Tips
    • P/N RT-610B - 3 Different Sized Pairs of Rubber Eartips, BLACK

What is the Difference Between Mono and Stereo?

Difference Between Mono and Stereo Plugs

  • The most obvious difference can be seen when looking at the audio plug
    • Stereo plugs have three conductors (tip, ring and sleeve) with two black insulators between the tip, ring and sleeve on the male audio plug.
    • A 3-conductor stereo plug is often referred to as a "TRS" type of plug, where TRS is an abbreviation for TIP, RING, SLEEVE.
    • Mono Plugs have two conductors with one black insulator between the tip and the sleeve, so technically speaking, the plug would be a "TS Plug" for Tip, Sleeve
    • Usually, the sleeve is the "common" or "ground" connection
  • If you plug a 2-conductor male plug (mono headphone) into a 3-conductor (stereo) jack, you will only hear sound coming from one ear. The illustration below shows that plugging a mono headphone into a stereo jack results in the Right Audio channel of your stereo system being shorted to Ground, resulting in your only hearing sound from the Left audio channel.

Mono Plug in a Stereo Jack

  • If you pull the plug out slightly to where the black band is between the Right channel and the Ground, you might hear sound in both ears that is combined from the Left and Right channels
  • Stereo headphones are designed with a Left channel and a Right channel so that you can hear different audio in each ear (i.e. drums and woodwinds in the Left ear and the Brass and String Instruments in the Right ear)
  • Mono headphones have identical audio going to both ears
  • Stereo audio gives a feeling of multidimensional sound as your brain percieves that you are between the Left and Right audio channels
  • The Stereo sound makes you feel like you are right in the middle of the band or orchestra, surrounded by the musicians you are hearing
  • Most MP3 players, DVD players, TV's and computers use stereo sound and reproduce the positioning of the microphones in relationship to the instruments and vocalists that are performing
  • Many portable electronic devices with a single speaker use Mono sound (i.e. assisted listening devices, translation equipment, walkie talkies, transcription equipment etc.)
  • The most obvious difference can be seen when looking at the male plug
  • Stereo Plugs have three conductors on the plug, and Mono Plugs have only two conductors
  • If you plug a stereo headphone into a mono jack, you will probably only hear sound from the Left side of the headphone because the two conductors inside the mono jack will only come into contact with the tip and sleeve of the plug
  • Stereo headphones have a left channel and a right channel with different audio going to each ear
  • Mono headphones have the same audio going to both ears
  • Stereo audio gives a feeling of multidimensional sound that surrounds you
  • Stereo sounds like you you are right in the middle of the band or orchestra
  • Most MP3 Players, DVD Players and Computers use Stereo Sound
  • Many portable electronic devices with a single speaker use Mono sound (i.e. portable TV, transistor radio, tape recorder, portable speaker)
Cable Length
Black, Silver Trim
Cord Type
Round PVC
Driver Size
1 Black Med Size Eartip
Left or Right Ear
Frequency Response
20Hz to 20kHz
28 Ohms
Mid Range
20 dB
Plastic bag
Plug Type
3.5mm, 2-Cond
Plug Plating
Plug Style
90-Degree Angle

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