@SapphireMind I’m guessing most modern electronics will have switching power converters—if you want to check, the voltage is required to be printed on the charger (often on the “box in the middle”.)
For example, the relevant line on my standard iphone wall charger reads:
Input: 100-240V ~ 50/60 Hz 0.15A
As per what @BrettGlass said above, that means it’s a switcher and is safe to use.