Sony MDR-XB55AP Stereo Headphones
Operating Instructions
Earbud Fitting
The headphones include four sizes of hybrid silicone rubber earbuds: SS (marked with one line), S (marked with two lines), M (marked with three lines, pre-attached), and L (marked with four lines). Select the size that provides a secure and comfortable fit for optimal sound quality and noise isolation.
Microphone and Multi-function Button
The headphone cable features an integrated microphone and a multi-function button for controlling playback and calls. The microphone is typically located on the cable, and the multi-function button is a single button for controlling playback and calls.
Using the Multi-function Button
The multi-function button allows for various controls:
- Press once: Answer/end call, Play/pause music track.
- Press twice: Skip to the next track.
- Press three times: Skip to the previous track.
- Long press (approx. 2 seconds): Reject an incoming call. Two low beeps confirm rejection.
- Long press (if available): Activate 'Siri' feature on compatible devices.
Note: Button functionality may vary slightly depending on the connected smartphone. 'Siri' availability depends on the iPhone and its software version.
Specifications
Headphones Specifications
| Attribute | Specification |
|---|---|
| Type | Closed, dynamic |
| Driver Unit | 12 mm, dome type (CCAW Voice Coil) |
| Power Handling Capacity | 100 mW (IEC) |
| Impedance | 16 Ω at 1 kHz |
| Sensitivity | 110 dB/mW |
| Frequency Response | 4 Hz – 24,000 Hz |
| Cable | Approx. 1.2 m (47.25 in.), Litz wire, Y-type |
| Plug | L-shaped gold-plated 4-pole mini plug |
| Mass | Approx. 8 g (0.29 oz) without cable |
Microphone Specifications
| Attribute | Specification |
|---|---|
| Type | Electret condenser |
| Directivity | Omni directional |
| Open Circuit Voltage Level | -40 dB (0 dB = 1 V/Pa) |
| Effective Frequency Range | 20 Hz – 20,000 Hz |
Supplied Accessories
- Hybrid silicone rubber earbuds: SS (1 line) (2), S (2 lines) (2), M (3 lines) (2), L (4 lines) (2)
- Carrying pouch (1)
Precautions and Care
Precautions
- High volume may adversely affect your hearing.
- Do not use the unit while walking, driving, or cycling. Doing so may cause traffic accidents. [no-driving-symbol]
- Do not use in hazardous areas unless the surrounding sound can be heard. [no-hazardous-area-symbol]
- If the earbuds are not securely attached, they may fall off and remain inside the ear during use. Ensure earbuds are securely attached before use.
- Small parts present a risk of ingestion. After use, store in a location out of reach of small children. [child-safety-symbol]
- If earbuds become dirty, remove them and gently wash by hand with a neutral detergent. After cleaning, thoroughly wipe off any moisture.
Removing the Headphones
After use, remove the headphones slowly. Note: Headphones are designed to fit closely in your ears. Pressing hard or removing too quickly may cause injury. A diaphragm click sound during use is not a malfunction.
Note about Static Electricity
In dry air, static electricity may accumulate on your body, causing discomfort. This is not a unit malfunction. Wearing clothes made from natural materials that generate less static electricity can help reduce this effect.
Additional Information
Design and specifications are subject to change without notice. iPhone and Siri are trademarks of Apple Inc., registered in the U.S. and other countries. Replacement parts: Hybrid silicone rubber earbuds. Please consult your nearest authorized Sony retailer or www.sony.com for information about replacement parts.
©2021 Sony Corporation. Printed in Thailand.
