Sony MDREX155AP in-Ear Earbud Headphones User Manual

Sony MDREX155AP in-Ear Earbud Headphones

About SONY
Sony was founded in 1946 by Masaru Ibuka and Akio Morita, originally as Tokyo Tsushin Kogyo. The company started with a focus on producing innovative consumer electronics, such as radios and tape recorders, and later expanded into various other areas, including televisions, audio equipment, cameras, video game consoles, and mobile devices.

Here are some key aspects and divisions of Sony:

1. Electronics: Sony is widely recognized for its wide range of consumer electronics, including televisions, home audio systems, digital cameras, smartphones, tablets, laptops, and gaming consoles. The company has been at the forefront of technological advancements and has introduced many groundbreaking products over the years.
2. Entertainment: Sony is also heavily involved in the entertainment industry. It owns and operates Sony Picture Entertainment, which produces and distributes movies and television shows globally. Additionally, Sony Music Entertainment is one of the largest music labels in the world, representing a wide array of artists across various genres.
3. PlayStation: Sony’s PlayStation brand is a dominant force in the gaming industry. The PlayStation consoles, including the latest PlayStation 5, have gained immense popularity among gamers worldwide. Sony also develops and publishes a range of video games through its subsidiary, Sony Interactive Entertainment.
4. Imaging: Sony is a major player in the digital imaging market, producing high-quality cameras, lenses, and other imaging equipment. Its Alpha series of mirrorless cameras have garnered critical acclaim and is favored by both amateur and professional photographers.

Sony continues to innovate and expand its presence in different sectors, including virtual reality, robotics, and artificial intelligence. The company is known for its commitment to technological advancements, design excellence, and delivering high-quality products and experiences to its customers.

Earbuds

How to use

If you install the Smart Key app* from the Google Play™ store, the track and volume adjustment on your smartphone will be enabled with the multi-function button.

• Smart Key is an application for Xperia™, Android™ OS 4.0 and above. The app may not be available in some countries and/or regions, and may not be used with unsupported smartphone models.

https://play.google.com/store/apps/details?id=com.sonymobile.extras.liveware.extension.smartkey

Compatible products

Use this unit with smartphones.
Notes

• If you connect to an unsupported smartphone, then the microphone of this unit may not function, or the volume level may be low.
• This unit is not guaranteed to operate digital music players.

Using the Multi-function button*

Press once to answer the call, and press again to end; Press to play/pause a track.

Available operations for iPhone

Plays/pauses a track of the connected iPhone product with a single press. Skips to the next track with a double press. Skips to the previous track with a triple press. Starts the “VoiceOver**” feature with a long press (if available).
Hold down for about two seconds to reject an incoming call. When you let go, two low beeps confirm the call was rejected.

• The button function may vary depending on the smartphone.

Specifications

Headphones

• Type: Closed, dynamic
• Driver unit: 9 mm, dome type (CCAW Voice Coil)
• Power handling capacity: 100 mW (IEC*)
• Impedance: 16 Ω at 1 kHz
• Sensitivity: 103 dB/mW
• Frequency response: 5 Hz – 24,000 Hz
• Cable: Approx. 1.2 m (47 1 /4 in), Litz wire, Y-type
• Plug: L-shaped gold-plated 4-pole mini plug
• Mass: Approx. 3 g (0.11 oz) without cable Microphone
• 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) (attached to the unit at the factory) (2), L (4 lines) (2) / Cable adjuster (winds cable up to 50 cm (19 3 /4 in)) (1)

• IEC = International Electrotechnical Commission Design and specifications are subject to change without notice.

iPhone is a trademark of Apple Inc., registered in the U.S. and other countries. Xperia is a trademark of Sony Mobile Communications AB. Android and Google Play are trademarks or registered trademarks of Google, Inc. Optional replacement earbuds can be ordered from your nearest authorized Sony retailer or www.sony.com. You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment.

Precautions

• High volume may affect your hearing. For traffic safety, do not use it while driving or cycling.
• Install the earbuds firmly. If an earbud accidentally detaches and is left in your ear, it may cause injury.
• Keep earbuds clean. To clean the earbuds, wash them with a mild detergent solution.

Note on static electricity

Static electricity accumulated in the body may cause mild tingling in your ears. To minimize the effect, wear clothes made from natural materials.

FAQs Sony MDREX155AP in-Ear Earbud Headphones

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