Notes On Using 2.4 Ghz Devices; Notes On Using 5 Ghz Devices; Reception Interference Caused By Bluetooth Devices - Sony Xperia 5 III User Manual

Notes on Using 2.4 GHz Devices

WLAN devices operate on the same frequency band used by home electric appliances such as
microwave ovens, industrial, scientific and medical equipment, premises radio stations for
identifying mobile units used in the manufacturing lines of plants (radio stations requiring a license),
specified low power radio stations (radio stations requiring no license) and amateur radio stations.
Before using handset, confirm that premises radio stations, specified low power radios, and

amateur radio stations are not in use nearby.
In the event of handset causing harmful radio wave interference with premises radio stations for

identifying mobile units, promptly change the operating frequency or stop radio wave emission by
turning off the power, etc. and then contact a SoftBank Shop or Customer Service for
measurement against the cross talk (e.g. installing partition.)
Also, in the event of handset causing radio wave interference with specified low power radios and
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amateur radio stations, contact a SoftBank Shop or Customer Service.

Notes on Using 5 GHz Devices

In 5 GHz frequency bandwidth, handset can use following bands:
5.2 GHz band (W52/36, 40, 44, 48 ch)
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5.3 GHz band (W53/52, 56, 60, 64 ch)
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5.6 GHz band (W56/100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144 ch)
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Using a 5.2/5.3-GHz-band wireless LAN outdoors is prohibited by law (this does not apply to
communication with access points/relay stations of high-output data communications systems
operating in the 5.2 GHz band).

Reception Interference Caused by Bluetooth Devices

Bluetooth and WLAN (IEEE802.11b/g/n/ax) use the same frequency band. Using near Wi-Fi
(WLAN) devices may cause radio interference, low-communication speed, noise or connection fault.
Or may cause communication interruption or sound distortion when streaming data is played. In that
case, take the following measures.
Provide distance between Wi-Fi (WLAN) device and Bluetooth device. Required distance varies

by device.
If the problem persists, power off Bluetooth device.
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Safety Precautions