Sony WH-CH710N Precautions ( On BLUETOOTH® communications )

Precautions

On BLUETOOTH® communications 

• Bluetooth wireless technology operates within a range of about 10 m.
  The maximum communication distance may vary depending on the presence of obstacles (people, metal objects, walls, etc.) or the electromagnetic environment.
• Bluetooth communications may not be possible, or noise or audio dropout may occur under the following conditions:
  • When there is a person between the unit and the Bluetooth device. This situation may be improved by positioning the Bluetooth device so that it faces the antenna of the unit.
  • When there is an obstacle, such as a metal object or a wall, between the unit and the Bluetooth device.
  • When a Wi-Fi device or microwave oven is in use, or microwaves are emitted near the unit.
  • Compared to use indoors, use outdoors is subjected little to signal reflection from walls, floors, and ceilings, which results in audio dropout occurring more frequently than use indoors.
  • The antenna is built into the unit as indicated by the dotted line in the illustration (Fig. A). The sensitivity of the Bluetooth communications can be improved by removing any obstacles between the connected Bluetooth device and the antenna of this unit
    
• Bluetooth and Wi-Fi (IEEE802.11b/g/n) devices use the same frequency (2.4 GHz). When using the unit near a Wi-Fi device, electromagnetic interference may occur, resulting in noise, audio dropout, or the inability to connect. If this happens, try performing the following remedies:
  • Establish a connection between the unit and the Bluetooth device when they are at least 10 m away from the Wi-Fi device.
  • Turn off the Wi-Fi device when using the unit within 10 m of the Wi-Fi device.
  • Position the unit and the Bluetooth device as near as possible to each other.
• Microwaves emitting from a Bluetooth device may affect the operation of electronic medical devices. Turn off this unit 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.
• The audio playback on this unit 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 viewing movies or playing games.
• 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.
• The unit 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.
• Connection with all Bluetooth devices cannot be guaranteed.
  • Bluetooth devices connected with the unit 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 unit 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.

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