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• Be sure to read the connected device’s user manual before use.
• Audio-Technica will not be liable in any way for any loss of data
in the unlikely event that such losses should occur while using
the product.
• On public transportation or in other public places, keep the
volume low so as not to disturb other people.
• Minimize the volume on your device before reproducing music.
• When using the product in a dry environment, you may feel a
tingling sensation in your ears. This is caused by static
electricity accumulated on your body, not by product
malfunction.
• Do not subject the product to strong impact.
• Do not store the product in direct sunlight, near heating
devices, or in hot, humid, or dusty places.
• When the product is used for a long time, the product may
become discolored due to ultraviolet light (especially direct
sunlight) and wear.
• If the charging case is placed in a bag while the USB charging
cable is still connected, the USB charging cable may become
caught, severed, or broken.
• Make sure to hold the plug when connecting and disconnecting
the USB charging cable. The USB charging cable may become
severed or an accident may occur if you pull on the cable itself.
• When you are not using the USB charging cable, disconnect it
from the charging case.
• When you are not using the product, store it in the included
charging case.
• If you use eartips other than those included, the headphones
may not fit into the charging case, or may not charge. Be sure
to use the included eartips.
• When using the product, select the eartips that fits your ears
best, and wear the product securely.
• This product can be used to talk on the phone only when using
a mobile telephone network. Support for telephony apps that
use a mobile data network is not guaranteed.
• If you use the product near an electronic device or transmitter
(such as a mobile phone), unwanted noise may be heard. In this
case, move the product away from the electronic device or
transmitter.
• If you use the product near a TV or radio antenna, noise may be
seen or heard in the television or radio signal. In this case, move
the product away from the TV or radio antenna.
• To protect the built-in rechargeable battery, charge it at least
once every 6 months. If too much time passes between
charges, the life of the rechargeable battery may be reduced, or
the rechargeable battery may no longer be able to be charged.
Notes on use
• The water-resistant (drip-proof) specification of this product applies only to the headphones, not the charging case.
• Although the product has water-resistant (drip-proof) capabilities equivalent to IPX2, the part where the sound comes from is not
water-resistant (drip-proof).
• The water-resistant (drip-proof) performance is designed to protect the headphones if they get wet from rain, etc. (equivalent to IPX2).
JIS/IEC protection grade IPX2 means that the headphones are protected against water droplets falling from above at a 15-degree
angle. The headphones cannot be used in hot and humid places, such as bathrooms.
• The headphones are not waterproof. Submerging them in water may cause damage.
About water-resistant (drip-proof) performance
The product is designed to use its built-in microphone to pick up noise from the surrounding environment (noise from
vehicles, noise from air conditioners, etc.) and to cancel out that noise by producing sounds in negative phase. This
results in a reduction in the sounds in your environment.
• The product’s noise-cancelling function mainly reduces noises of 300 Hz or lower. Because of this, it has almost no effect on noises above
that frequency (ringtones, speaking voices, etc.).
• Not all sounds are cancelled.
• Depending on the type of noise (or in quiet locations), you may not notice the noise-cancelling effect.
• The noise-cancelling effect may vary or a bleep (howling) may occur depending on how you wear the product. In these cases, take off the
product and put the product in your ears again correctly.
• When you use the product in a train or a vehicle such as bus or truck, noise may be heard depending on rail/street conditions.
About the active noise-cancelling function
