Aliexpress
Click here… to search for VIOMI VBH129 350mL Portable USB Juicer on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (34.61 USD): bGhOnEy10
Coupon (34.61 USD): BGdragonBoat
Coupon (34.61 USD): BGAFF10OFF
Coupon (34.61 USD): BGHOMEA15%
Coupon (34.61 USD): BgcLuBofErtA10
Coupon (34.61 USD): BGCLUBOFERTA10
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): AFfbG10, BGBFAFF2019, BGCITYADS2019, BGHOMEG12, BGSS10%SW, bgshOOp10, BGHome15%
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for VIOMI VBH129 350mL Portable USB Juicer is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).