DDPAI is currently slashing their price and also giving some extra discount based on your purchase. Not sure when it started and will ended though. If you check youtube, their dashcams seem ok and comparable to 70mai.
The latest model is Z50 with 4k display with the parking package dropped from US$ 375.99 to US$ 151.98. Apply coupon code D15 for US$136.98 delivered. However, if you tried to buy another one after your first purchase the price becomes US$ 222.98 :)
The delivery is free and upon chat with the sales they said any other fees will be covered by them.
There's a referral as well but as not permitted in here so I can't put it.
Spend and Save promotion coupons:
Get $5 Off Over $90 Code: D05
Get $10 Off Over $120 Code: D10
Get $15 Off Over $150 Code: D15
Get $20 Off Over $250 Code: D20