If you get static interference or the sound cuts out on your ULTIMATE EARS 900s earphones, try the following:

  • Check the cable connection on your device as well as on the earbuds. The cable can be connected/disconnected from both ends.
  • Plug your earphones into a different device (ex. computer or music player).
    • If the audio from the new device is fine, plug the cable back into the original device, and move the cable gently near the jack, and also near the earphones.
    • If the problem doesn’t go away, then the original device may be causing the problem.

Your ULTIMATE EARS 900s earphones come with an assortment of ear tips:

Comply™ foam tips

Silicone cushions

Comply™ foam tips

The ULTIMATE EARS 900s earphones include three pairs of foam tips. To fit your foam tips for maximum comfort:

Place a tip on one of the earphones and gently compress the foam with your fingers.

After the foam compresses, place the earphone in your ear and hold it in place for 15 seconds.

The foam will expand to make a custom fit.

The earphone is properly fitted if it holds in place after 15 seconds (if it falls out, repeat the process).

Repeat for other ear.

Silicone cushions

You can tell the cushions are properly fitted when the earphones:

Sit comfortably in your ear

Don’t fall out of your ear

Provide sound that is rich and full

To find your best fit:

Put a medium cushion on one of the earphones and then place it in your ear.

Gently move the earphone as you press it in to form a seal.

If the cushion feels:

Too large or bounces back out after you press it in, try a smaller size.

Too small, slips out easily, or loses sound quality quickly, try using a larger size.

NOTE: If you find that all cushion sizes fall out easily, try inserting them with your jaw slightly open.

Repeat for the other ear.

The optimal fit is usually found through trial and error. You may need to experiment over the first few days in order to find your ideal fit.

NOTE: Like feet, pairs of ears aren’t always the same size. You may find that using mismatched earpieces provides the best fit.

If your ULTIMATE EARS 900s earphones sound muffled, here are some things to try:

Your earphones may not be properly fitted — see answer.

If you need technical support for your ULTIMATE EARS 900s earphones, please have this information available:

Product name

Product Identification number (PID)

To contact Customer Care, you can call us at: +1 646-454-3200

Locating the product information

The product information for your earphones is printed on the plastic 3.5mm mini-jack housing of the cable.

UE 900 Headset Label

You can use the inline remote control buttons to do the following:

During a phone call

Volume buttons — Adjust in-call volume

Multifunction button — Answer an incoming call and end an existing call

NOTE: The volume-up button has a raised bump to help identify it.

While listening to media/music

Volume buttons — Adjust the volume

Multifunction button — Pause/Play (one click), play the next track (double-click), play the previous track (triple-click), activate Voice Control for Apple iOS devices (click and hold).

NOTE: Inline remote control button functions may vary by device.

Apps available

Get Control on your speakers and music.