Dimensions:99.7 x 77.3 x 30.5mm / 3.93” x 3.04” x 1.2”
Weight:218g / 7.69oz
Is it normal that my charging station, car charger, or wall charger is making a humming noise?
This is not abnormal. Please try using a different charging cord or a different outlet to test if the product makes this sound no matter what the conditions are. If you are still dissatisfied, please contact our customer support team.