MoPei Phone Swing Device Steps Counter for Hatching Eggs in Pokemon Go and Steps Challenge, Compatible with iOS and Android

NOTE: Do not power it by USB or batteries simultaneously, or it malfunctions. Please add some weights or fix the stand to stabilize this device when swing a smart watchWARNING: Do not use 9V/12V fast charger to power it, or it will cause a damage. We stand behind our products with limited warratny. Please feel free to reach out to us if you have any concerns and we will find a solution for you....