Sony Xperia XZ2 Manual page 177

Do not charge when handset or related accessory is wet with liquids such as water (drinking
water, sweat, sea water, urine of pets, etc.)
May cause fire, burns, injury, electric shock, etc.
For water resistance, see
Do not subject handset to excessive force or break it. Especially when carrying it in your
pocket, do not hit it or press it between other objects.
Internal Battery breakage may cause fire, burns, injury, etc.
* Take additional care in instances such as the following:
・Sitting or squatting with the product in your pants or skirt pocket
・The product becoming caught in a sliding door or vehicle door when in a jacket pocket
・Stepping on the product when it is on something soft such as a sofa, bed, or futon or on the floor
Do not disassemble, modify, or solder.
May cause fire, burns, injury, electric shock, etc.
Do not allow handset or related accessory to get wet with liquids such as water (drinking water,
sweat, sea water, urine of pets, etc.)
May cause fire, burns, injury, electric shock, etc.
For water resistance, see
Do not allow liquids such as water (drinking water, seat, seawater, urine of pets) to come into
Charging Terminals or External Device Port.
May cause fire, burns, injury, electric shock, etc.
For water resistance, see
Use optional accessories specified by SoftBank.
Using unspecified accessories may cause fire, burns, injury, electric shock, etc.
xperia-xz2_14_Safety Precautions.docx
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"Water Resistance/Dustproofing."
"Water Resistance/Dustproofing."
"Water Resistance/Dustproofing."