Battery Capacity 60V 7.8 ah Lithium Battery, Charging voltage 100V-240V 50/60hz, Wheel Size 17 INCH Vacuum Tyre, Certification CE, Max Climb Range Less 30°, Wheel Hub Alloy Hubs, Motor Brushless, Charging Time 3-6 Hours after running 30KM, Waterproof Grade IP54, Gross Weight 30KG, Brand Name MACWHEEL, Power 500W, Model Number D2, LED Indicator Lumen 500lm, Loading Capacity 120KG, Max Speed 20Km/h, Dimensions 650mm*430mm*1050mm, Color White / Red(As the picture of option shown).
Basically copy coupon, view price history or create e-mail price alert. What is the best price?
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.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
1. ($817.19): ERidingMarch
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): e1cbe5, e2bcea, BgAuMotor, TTxBG10, 502C6B, BGMOTO25, BGAutos, 7bcdf9, BGAFF7OFF, BGEBSC15
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for MACWHEEL D2 Self-Balancing Electric Unicycle? There we go. The lowest price was: $449.25.
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)).