23Sectional ViewColoured partsPressure-relieving urethane cushion213Tactile dotConnecting to the stereo mini jackEnglishWARNINGTo reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.To reduce the risk of electrical shock, do not open the cabinet. Refer servicing to qualified personnel only.You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment.Features The control box-free design in-the-ear type digital noise canceling headphones. Micro size Balanced Armature type driver unit and power-saving integrated DNC processor use miniaturized battery and circuit, which allow the control box-free design. Newly developed Balanced Armature type driver unit and high efficiency MEMS microphone realized both small body and outstanding noise canceling performance. Digital noise canceling headphones with Sony’s unique DNC Software Engine. Creation of a high-precision canceling signal delivers outstanding noise canceling performance. 20 hour long battery life by newly developed power-saving Integrated DNC Processor. Allows you to use on a long flight. Automatic AI (Artificial Intelligence) Noise Canceling function. Automatic selection of the optimal noise canceling mode based on intelligent analysis of environmental ambient noise. Digital equalizer delivers ideal frequency response and high-quality music reproduction. 3 sizes of noise isolation earbuds for effective attenuation of ambient noise. (S, M, L) USB charge adaptor supplied.Charge the headphones firstThe headphones contain a rechargeable nickel-metal hydride battery. Because the battery was included in the package at the time of manufacture (as a convenience to the user), the remaining battery charge may be somewhat depleted by the time of purchase. Be sure to recharge it before use. For the recharging procedure, see “Charging the headphones”.Location and Function of Parts (see fig. )Headphones Microphones Earbuds Power indicator (red)Indicates operating status of headphones. (power) button Stereo mini plug (charging plug)USB charge adaptor USB plug cap USB plug Charging indicator (orange)Indicates charging status. Charging jackCharging the headphones (see fig. )The headphones contain a rechargeable nickel-metal hydride battery. Charge the battery before use.1 Turn on a computer.2 Detach the USB plug cap from the USB charge adaptor, then connect the USB charge adaptor to the computer.3 Plug the headphones securely into the charging jack of the USB charge adaptor matching the jack shape.The charging indicator lights up in orange and recharging starts.4 After the charging indicator goes out, unplug the headphones from the USB charge adaptor.5 Disconnect the USB charge adaptor from the computer, and attach the USB plug cap.General charging and usage timeDepending on the remaining battery status of the headphones, the supplied USB charge adaptor requires approx. 15 minutes to 4 hours to recharge.Approx. charging time Approx. usage time*14 hours*220 hours*3*1 At 1 kHz, sound pressure level 90 dB output*2 Hours required to fully charge an empty battery*3 Time stated above may vary, depending on the temperature or conditions of use. Tips If you start charging while the headphones are turned on, the headphones will turn off automatically. The headphones cannot be turned on while charging. If you recharge the headphones by connecting to an AC outlet, use the separately-sold USB Charging AC Power Adaptor AC-U501AD / Built-in Battery USB AC Charger AC-UP100 (see “Recommended accessories”). For more information, refer to the operating instructions supplied with the adaptor. If the headphones are malfunctioning, charging will not start and the charging indicator will flash. In this case, disconnect the unit from the connected device, and consult your place of purchase, or a Sony dealer.Notes Charge in an environmental temperature of between 0°C and 40°C (32°F and 104°F). Otherwise, the battery may not fully charge. Take the headphones off before charging. When unplugging the headphones, hold the cord by the plug. Do not pull on the cord or it may break. If you haven’t used the headphones for a long time, the life of the rechargeable battery may become short. This will improve when you repeat the charging and discharging process several times. Do not store the headphones in hot places for a long time. When storing it for more than a year, charge the battery once a year to prevent over discharge. For system requirements for a computer that can charge the battery using USB, see “System requirements for battery charge using USB”. Charging will not start if the extension cord is used. Connect the headphone plug to the USB charge adaptor directly.How to install the earbuds correctly (see fig. )If the earbuds do not fit your ears correctly, the noise canceling effect will not be optimal. To optimize noise canceling and to enjoy better sound quality, change the earbuds to another size, or adjust the earbud position to fit your ears comfortably and snugly.If the earbuds do not fit your ears, try another size. Confirm the size of the earbuds by checking colour inside (see fig. - ).If you change the earbuds, install them firmly on the headphones to prevent the earbud from detaching and remaining in your ear.Earbud sizes (inside colour)S(Orange)M(Green)L(Light blue)Small LargeTo detach an earbud (see fig. - )While holding the headphone, twist and pull the earbud off. TipIf the earbud slips and cannot be detached, wrap it in a soft dry cloth.To attach an earbud (see fig. - )Push the parts inside of the earbud into the headphone until the projecting part of the headphone is fully covered.Notes Prolonged use of the noise isolation earbuds may strain your ears due to their snug fit. If you experience discomfort in your ears, it is recommended to stop using the earbuds for a while. The pressure-relieving urethane cushion is extremely soft. Therefore, do not pinch or pull the urethane cushion. If the urethane cushion is broken or detached from the earbuds, it will not take its correct position and the earbuds will lose their noise isolation function. The pressure-relieving urethane cushion may deteriorate due to long-term storage or use. If the pressure-relieving power is lost and the urethane cushion becomes hard, the earbuds may lose their noise isolation function. Do not wash the noise isolation earbuds. Keep them dry, and avoid accumulation of water in the pressure-relieving urethane cushions. Not doing so may cause early deterioration.Listening to music (see fig. )1 Connect the headphones to the AV equipment.2 Put on the headphones.Wear the earpiece marked in your right ear and the one marked ( has a tactile dot for easy recognition) in your left ear.Adjust the earbud position to fit your ears snugly.NoteIf you wear the headphones incorrectly, noise canceling will not be effective. Adjust the earbud position to sit on your ears comfortably and fit your ears snugly.3 Press and hold the (power) button for about 2 seconds.Beeps sound from the headphones and the power indicator flashes.NoteYou may also hear a slight noise; however, this is operational noise of the Noise Canceling function and not a malfunction.4 Turn on the power of the AV equipment.After use1 Press and hold the (power) button for about 2 seconds.Beeps sound from the headphones and the power indicator lights up, and then the headphones turn off.2 Take the headphones off slowly.Notes You cannot hear sound from AV equipment when the headphones are turned off. The headphones are designed to fit closely in your ears. If the headphones are pressed hard while in use or taken off too quickly, they may damage your eardrum or elsewhere.Remaining batteryYou can check the remaining battery charge, by the number of beeps when you turn the headphones off. For details, refer to “Beep and indicator status”.When the battery becomes empty, beeps sound from the headphones for 2 seconds and the power indicator flashes for 30 seconds. Then the headphones will turn off automatically.Automatic AI Noise CancelingAutomatic AI Noise Canceling is a function that automatically selects one of the noise canceling modes.When the headphones are turned on, NC mode B is set. This function provides very effective automatic noise canceling by constantly analyzing ambient sound.Noise canceling modesThe current noise canceling mode can be checked by the number of power indicator flashes. For details, refer to “Beep and indicator status”.NC Mode ANoise mainly in an airplane is effectively reduced.NC Mode BNoise mainly in a bus or a train is effectively reduced.NC Mode CNoise mainly found in an office environment (PC, copier, air ventilation, etc.) is effectively reduced. TipNoise characteristics vary over time. The headphones automatically select the appropriate noise canceling mode for the situation.How to use the supplied cord adjuster (see fig. )You can adjust the cord length by winding the cord onto the cord adjuster.(The cord can be wound to the cord adjuster up to 40 cm. If you wind more, the cord comes off from the cord adjuster easily.)1 Wind the cord.2 Push the cord into the slot hole to secure in place.NoteDo not wind the plug or split section of the cord, as it will strain the cord and may cause a wire break.How to attach the clip to the cord (see fig. )1 Hold the clip closed, and pull up the lever on the clip just a little.2 Put the cord into the groove under the lever.Notes If you pull up the lever on the clip without holding the clip closed, or holding the clip closed but opening the lever too much, you cannot put the cord into the groove under the lever. Do not catch the cord on the projection of the clip or do not wedge it into the groove. It may damage the wires of the cord. Do not move the clip position with the cord attached. It may damage the wires of the cord.Notes on using on an airplane The supplied plug adaptor can be connected to the dual or stereo mini jacks of in-flight music services.dual jacks stereo mini jacks Do not use the headphones when use of electronic equipment is prohibited or when use of personal headphones for in-flight music services is prohibited. Take the headphones off when not in use.How to use the carrying case (see fig. )Bundle the cord before storing the headphones in the carrying case.Beep and indicator statusBeep from the headphones — battery statusStatus BeepFull 3 times*12 times*1Low 1 time*1Empty 1 long beep (2 seconds)*2*1 When turning the headphones OFF.*2 The power indicator flashes for 30 seconds.Power indicator of the headphones — noise canceling modesCurrent NC mode Power indicator flashesNC mode A 1 time per 5 secondsNC mode B 2 times per 5 secondsNC mode C 3 times per 5 secondsCharging indicator of the USB charge adaptor — charging statusStatus Charging indicatorCharging OnFull OffCharging malfunction Fast flashesTroubleshootingNo sound Turn on the headphones. Check that the rechargeable battery is not depleted. Check the connection of the headphones and the AV equipment. Check that the connected AV equipment is turned on. Turn up the volume of the connected AV equipment.Power does not turn on. Recharge the headphones. If the power does not turn on, even after charging the headphones, the rechargeable battery may be damaged. Consult your place of purchase or a Sony dealer in this case. The headphones cannot be turned on while charging. Unplug the headphones from the USB charge adaptor.Charging cannot be done. Check the charging indicator lights up. Plug the headphones securely into the charging jack of the USB charge adaptor. Check that the USB charge adaptor and the computer are firmly connected. Check that the computer is turned on. Check that the computer is not in standby, sleep or hibernation mode. Check that the USB charge adaptor and the computer are directly connected; not via a USB hub. You may be using an adaptor other than the recommended one. Use a USB AC adaptor specified in “Recommended accessories”. If the charging indicator flashes, the headphones may be malfunctioning. Disconnect the unit from the connected device, and consult your place of purchase, or a Sony dealer.The unit cannot be recognized by a computer. Check that the USB charge adaptor and the computer are firmly connected. Disconnect the USB charge adaptor from the computer and connect again. Check that the USB charge adaptor and the computer are directly connected; not via a USB hub. There may be a problem with the connected USB port of the computer. Connect to another USB port if it is available. Try the USB connection procedure again in cases other than those stated above.Muffled sound Turn down the volume of the connected AV equipment. Recharge the headphones.The headphones do not operate properly. The headphones cannot be turned on while charging. Unplug the headphones from the USB charge adaptor to operate. Recharge the headphones. If the power does not turn on, even after charging the headphones, the rechargeable battery may be damaged. Consult your place of purchase or a Sony dealer in this case.SpecificationsGeneralType: Closed, Balanced ArmatureDriver units: Balanced ArmaturePower handling capacity: 50 mWImpedance: 820 Ω (at 1 kHz)Sensitivity: 106 dB*1Frequency response: 5 Hz – 20,000 HzTotal Noise Suppression Ratio*2: Approx. 16 dB*3Cord: Approx. 1.5 m OFC Litz cord, neck-chainPlug: Gold-plated L-shaped stereo mini plugPower source: Built-in nickel-metal hydride rechargeable batteryMass: Approx. 6 g (without cord)Included itemsHeadphones (1)USB charge adaptor (1)Plug adaptor for in-flight use*4 (single/dual) (1)Noise Isolation Earbuds (S × 2, M × 2, L × 2)Cord adjuster (1)Clip (1)Carrying case (1)Operating Instructions (1)Warranty card (1)Recommended accessories (sold separately) *5USB Charging AC Power Adaptor: AC-U501ADBuilt-in Battery USB AC Charger: AC-UP100*1 150 mV input*2 Under the Sony measurement standard.*3 Equivalent to approx. 97.5 % reduction of energy of sound compared with not wearing headphones.*4 May not be compatible with some in-flight music services.*5 Sold in Japan and some other countries.System requirements for battery charge using USBPersonal Computer with pre-installed with any of the following operating systems and USB port:Operating Systems When using Windows® Windows® 7 (Home Premium / Professional / Ultimate / Starter) (including 64 bit version) Windows Vista® (Service Pack 2 or later) (Home Basic / Home Premium / Business / Ultimate) (including 64 bit version) Windows® XP (Service Pack 3 or later) (Home Edition / Professional / Media Center Edition 2004 / Media Center Edition 2005) When using Macintosh Mac OS X (version.10.5 or later)Windows and Windows Vista are registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.Macintosh and Mac OS are trademarks of Apple Inc., registered in the U.S. and other countries.Design and specifications are subject to change without notice.PrecautionsThe headphones contain a noise canceling circuit.What is noise canceling?The noise canceling circuit actually senses outside noise with built-in microphones and sends an equal-but-opposite canceling signal to the headphones. The noise canceling effect may not be pronounced in a very quiet environment, or some noise may be heard. Do not cover the microphones of the headphones with your hands. The noise canceling function may not work properly. The noise canceling effect may vary depending on how you wear the headphones. The noise canceling function works for noise in the low frequency band primarily. Although noise is reduced, it is not canceled completely. When you use the headphones in a train or a car, noise may occur depending on street conditions. Mobile phones may cause interference and noise. Should this occur, locate the headphones further away from the mobile phone.Notes on usage Clean the headphones with a soft dry cloth. Do not leave the jack plug dirty otherwise the sound may be distorted. Be sure to bring the headphones to a Sony dealer when requiring a change of earbuds or repair work. Do not leave the headphones in a location subject to direct sunlight, heat or moisture. Do not subject the headphones to excessive shock. The earbuds will need to be replaced from time to time. If they are worn out by daily use or longtime storage, replace them with new ones. If you fell drowsy or sick while using these headphones, stop use immediately. The headphones are designed to fit closely in your ears. If the headphones are pressed hard while in use, they may damage your eardrum or elsewhere. Do not use the headphones in a crowd or a place where a ball, etc., may hit you. Install the earbuds firmly onto the headphones. If an earbud accidentally detaches and is left in your ear, it may cause injury. Store the earbuds where children cannot reach in order to prevent from accidental ingestion or choking.Notes on headphonesPreventing hearing damageAvoid using headphones at high volume. Hearing experts advise against continuous, loud and extended play. If you experience a ringing in your ears, reduce the volume or discontinue use.Do not use headphones while driving or cycling, etc.As headphones reduce outside sounds, they may cause a traffic accident. Also, avoid listening with your headphones in situations where hearing must not be impaired, for example, a railroad crossing, a construction site, etc.Note on static electricityIn particularly dry air conditions, noise or sound skipping may occur, or mild tingling may be felt on your ears. This is a result of static electricity accumulated in the body, and not a malfunction of the headphones.The effect can be minimized by wearing clothes made from natural materials.If you have any questions or problems concerning the system that are not covered in this manual, please consult your nearest Sony dealer.
