On the USB transceiver/Bluetooth communications

  • Because the USB transceiver, Bluetooth devices, and wireless LAN (IEEE 802.11ax/b/g/n) use the same frequency band (2.4 GHz), microwave interference may occur and result in noise, audio dropouts, or communications being disabled if this headset is used near a wireless LAN device. In such a case, perform the following steps.
    • When connecting the headset to the USB transceiver or a Bluetooth device, use the headset at least 10 m (30 feet) away from the wireless LAN device.
    • If this headset is used within 10 m (30 feet) of a wireless LAN device, turn off the wireless LAN device.
    • Use this headset and the USB transceiver/Bluetooth device near each other as much as possible.
  • Bluetooth wireless technology operates within a range of about 10 m (30 feet). The maximum communication distance may vary depending on the presence of obstacles (people, metal objects, walls, etc.) or the electromagnetic environment.
  • Microwaves emitting from a Bluetooth device may affect the operation of electronic medical devices. Turn off the headset and other Bluetooth devices in the following locations, as it may cause an accident:
    • in hospitals, near priority seating in trains, locations where inflammable gas is present, near automatic doors, or near fire alarms.
  • This product emits radio waves when used in wireless mode. When used in wireless mode on an airplane, follow flight crew directions regarding permissible use of products in wireless mode.
  • When connected with a Bluetooth device, the audio playback on the headset may be delayed from that on the transmitting device due to the characteristics of Bluetooth wireless technology. As a result, the sound may not be in sync with the image when playing games or viewing movies.
  • The headset supports security functions that comply with the Bluetooth standard as a means of ensuring security during communication using Bluetooth wireless technology. However, depending on the configured settings and other factors, this security may not be sufficient. Be careful when communicating using Bluetooth wireless technology.
  • Sony shall assume no responsibility for any damages or loss resulting from information leaks that occur when using Bluetooth communications.
  • Bluetooth connections with all Bluetooth devices cannot be guaranteed.
    • Bluetooth devices connected with the headset must comply with the Bluetooth standard prescribed by Bluetooth SIG, Inc., and must be certified as compliant.
    • Even when a connected device complies with the Bluetooth standard, there may be cases where the characteristics or specifications of the Bluetooth device make it unable to connect, or result in different control methods, display, or operation.
    • When using the headset to perform hands-free talking on the phone, noise may occur depending on the connected device or the communication environment.
  • Depending on the device to be connected, it may require some time to start communications.

Note on static electricity

  • If you use the headset when the air is dry, you may experience discomfort due to static electricity accumulated on your body. This is not a malfunction of the headset. You can reduce the effect by wearing clothes made of natural materials that do not easily generate static electricity.

Notes on wearing the headset

  • After use, remove the headset from your ears slowly.
  • Because the headset achieves a tight seal over the ears, forcibly pressing it against your ears or quickly pulling it off can result in eardrum damage. When wearing the headset, the speaker diaphragm may produce a click sound. This is not a malfunction.

Other notes

  • When the volume is increased too much, sound may leak. Be careful not to bother others. As a guide, use at a volume that allows you to be called and answer even in a noisy place.
  • Do not subject the headset to excessive shock as it is a precision device.
  • The Bluetooth function may not work with a mobile phone, depending on the signal conditions and the surrounding environment.
  • Do not breathe into the driver unit.
  • Do not apply weight or pressure to the headset for long periods, including when it is stored, as it may cause deformation.
  • If you experience discomfort while using the headset, stop using it immediately.
  • The earpads may be damaged or deteriorate with long-term use and storage.
  • Be careful not to hit your eyes with the boom microphone when putting on, taking off or using the headset.
  • Earpads are consumables. If the earpads deteriorate or are damaged through long-term use and storage, contact your nearest Sony dealer.

Cleaning the headset

  • When the headset exterior is dirty, wipe it clean with a soft dry cloth. If the headset is particularly dirty, soak a cloth in diluted neutral detergent and wring it well before using it to clean the headset (excluding the earpads). Do not use solvents such as thinner, benzene, or alcohol, as they may damage the finish on the surface of the headset or cause other damages.

Do not use the headset near medical devices

  • Radio waves can affect cardiac pacemakers and medical devices. Do not use the headset in crowded places such as crowded trains or inside a medical institution.
  • The headset has magnet(s) which may interfere with pacemakers, programmable shunt valves for hydrocephalus treatment, or other medical devices. Do not place the headset close to persons who use such medical devices. Consult your doctor before using the headset if you use any such medical device.

Keep the headset away from the magnetic card

  • The headset has magnets. If you bring a magnetic card close to the headset, the card magnet may be affected and become unusable.

Keep out of reach of infants

  • There is a risk that they may swallow small parts. Keep out of reach of infants after use.

About the temperature rise

  • While charging the headset, or when using the headset for a long time, the temperature of the headset may rise, but this is not a malfunction.