189Safety Precautions Xperia™ Z3Notes on Using 5GHz DevicesAvailable channel numbers and the frequencies are as follows:FrequencyBand Ch (MHz)5.2GHz 36 (5,180), 40 (5,200), 44 (5,220), 48(5,240)5.3GHz 52 (5,260), 56 (5,280), 60 (5,300), 64(5,320)5.6GHz100 (5,500), 104 (5,520), 108 (5,540),112 (5,560), 116 (5,580), 120 (5,600),124 (5,620), 128 (5,640), 132 (5,660),136 (5,680), 140 (5,700)・Handset Wi-Fi (WLAN) function uses 5GHz.・Use of 5.2GHz and 5.3GHz frequency bands outdoor isprohibited by the Radio Law.Reception Interference Caused byBluetooth® DevicesBluetooth® and WLAN (IEEE802.11b/g/n) use the samefrequency band. Using near Wi-Fi (WLAN) devices may causeradio interference, low-communication speed, noise orconnection fault. Or may cause communication interruption orsound distortion when streaming data is played. In that case,take the following measures.・Provide distance between Wi-Fi (WLAN) device andBluetooth® device. Required distance varies by device.・If the problem persists, power off Bluetooth® device.Waterproofing/DustproofingHandset complies with IPX51 , IPX82 waterproof standards andIP6X3 dustproof standard with External Device Port Cover,SIM Card/SD Card Slot Cover firmly closed.1 Protection against water jet (at 12.5 L/min. from everydirection from a distance of approximately 3 m for over 3minutes through 6.3 mm nozzle)2 Protection against seepage when slowly submerged in stilltap water at room temperature to depth of 1.5 m for 30minutes3 Protection against dust ingress when being placed in anapparatus with grit and dust of diameters of 75 μm or lessand shaken for 8 hours.Handset Waterproofing/DustproofingHandset waterproofing/dustproofing provides the following:Calling in the rain without umbrella (approximately 20 mmrainfall per hour)・Do not open or close External Device Port Cover or SIMCard/SD Card Slot Cover with wet hands or when handsetgets wet.Washing handset when it gets dirty or stained with liquidother than tap water・Wash with tap water at normal temperature (5℃ - 35℃)with weak water flow (less than 6L/min.) at distance ofapproximately 10 cm away from the tap or shower.・When washing handset, make sure to securely close ExternalDevice Port and SIM Card/SD Card Slot Cover. Do not use abrush or sponge. Drain and the use handset after washing.Using handset at a poolside・Do not get water from a pool on handset or soak it in poolwater.Maintaining Waterproof/DustproofPerformanceObserve the following to avoid water or dust ingress.・Do not get any liquid other than room temperature tapwater on handset, or soak it in such liquid.・Firmly close External Device Port Cover and SIM Card/SDCard Slot Cover. Even a fine particle (one hair, one grainof sand, tiny fiber, etc.) put between the port contactsurfaces may allow water or dust to ingress.・Do not poke Earpiece/Speaker, Mic/Speaker, Second Mic,Headphone Port, Strap Hole, etc. with a sharp object.・Do not let handset fall. Scratch on handset may degradewaterproof/dustproof performance.・Rubber gaskets on inner side of SIM Card/SD Card Slot Coverplay important roles for waterproofing/dustproofing. Do notremove or damage them. Also, prevent dust from adheringonto them.