Review on BlueFire Waterproof Dual USB Charger Socket with Cigarette Lighter, Clock, and Voltmeter - Ideal for Motorcycle Handlebars & Rear View Mirror by Delbert Potter

I bought this item mainly because of the on/off switch which is a good feature. Just like a voltmeter and a watch. I thought there was a cigarette lighter too, but it's useless because it falls out before you drive 2 miles. You cannot close the lid while something is connected to the USB ports. Worst of all, it has weak charging ability. It won't power my GoPro if nothing else is plugged into it. When my phone is plugged in, my GoPro battery drains just as quickly as when it's not plugged in. Both devices lose power when connected to this charger. He is too weak to support them, let alone accuse them. None of these nice features matter if the main purpose of the device fails miserably. If you want a good charge, buy the device below instead. It doesn't have any "good" features but I have one of these and it charges my GoPro camera and phone very well at the same time: MOTOPOWER MP0609C 3.1A Waterproof Dual USB Charger Motorcycle Charging Kit SAE Adapter Cable USB for Phone, Tablet, GPS charger. You just have to remember to turn it off to avoid draining the bike battery.