$12.69 – 4.2A Waterproof Car 2 Port Dual USB Charger Socket Power Outlet with LED Voltmeter for 12-24V Car Boat Marine ATV Motorcycle – Blue.
Latest update shows that 4.2A Waterproof Car 2 Port Dual USB Charger costs $12.69 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Do you want to know what the best price is?
Latest coupon code price check (UTC time):
Banggood ($12.69)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Price? Well, this price is higher than average price ($10.11)
Link: Banggood product page
Price: $12.69
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGSCM11, BGCAR639, BGAMMT03
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for 4.2A Waterproof Car 2 Port Dual USB Charger? There we go. The lowest price was: $7.59.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).