ETYMOTIC ER-4 - User Instructions
The earphones fit into the ear canals with either soft plastic flanged eartips or foam eartips. The plastic eartips can be cleaned and reused.
Important
- For best performance and the most solid bass response, the eartips must be inserted deeply in the ear canals.
- If one or both earphones stop working or has reduced volume, change the earphone filter. See Changing Filters for detailed instructions.
- For best results, moisten the white soft plastic eartips before insertion.
- Using your right hand, grasp the eartip with the red plug.
- With your left hand, pull up and back on your right ear to straighten your ear canal.
- Carefully insert the right earphone so that it seals deeply and comfortably in your ear.
- Repeat procedure for the left ear, using the earphone with the blue plug.
- Remove earphones slowly with a twisting motion to gradually break the seal.
If a good seal cannot be obtained with the white plastic eartips, use the black foam eartips supplied with the earphones.
- Firmly grip the white eartip with one hand and the earphone with the other.
- Remove the eartip from the earphone, and replace it with a black foam eartip.
- Compress the foam eartip by rolling it between your fingers.
- With the opposite hand, pull up and back on your ear to straighten your ear canal.
- Carefully insert the earphone into the ear canal, holding it in place until the foam expands to produce a seal.
When used correctly, the ER•4 MicroPro earphones will provide excellent performance and high quality audio. Because the ER•4s provide exceptional sound reproduction and unrivaled isolation from outside sounds, high playback levels are unnecessary.
- Set the volume control of the audio source to minimum.
- Insert the 3.5mm earphone plug into the headphone jack (a 1/4" adapter is also supplied).
- Set the volume control to a comfortable listening level.
- Do not use insert earphones while driving a motorized vehicle, operating machinery, bicycling or jogging, because you may not be alerted to potential danger.
- Do not use the earphones at excessively loud levels.
- Do not expose earphones to extreme temperatures.
- Avoid dropping or strong impact.
- Keep earphones away from water and dust.
- Do not pull on the cord to remove it from the jack or the ear.
- Avoid bending the barrel in the center of the cord.
- Clean the white plastic eartips prior to use by others.
- Replace disposable foam eartips regularly.
- Firmly grip the eartip with one hand and the earphone with the other.
- Carefully remove the eartip from the earphone.
- Use warm water and mild soap to remove dirt and earwax from the eartip. Do not get the earphone wet.
- Rinse and completely dry the eartip before placing it back on the earphone.
- Push the eartip on the stem until it rests on the large edge of the barrel.
ER•4 MicroPro Earphones have special filters that shape the frequency response and prevent earwax from entering the earphones. These filters, a green acoustic mesh in a small metal barrel, are located at the end of the earphones and are visible when the eartips are removed. A dirty filter will reduce or block the earphone output (a filter may be blocked without appearing to be dirty). If one or both earphones stops working, or if the volume decreases, the filter should be replaced. The frequency with which the filters need to be changed will vary widely among users. Replacement filters can be ordered in Accessories.
NOTE: Four replacement filters have been provided with the ER•4 Earphones. Replacement filters are inside the filter changing tool. See ER-4 user manual for full instructions.