Just check coupons out (with price alert and history). You probably want to know what is the best price?
– Built-in Nozzle Storage, Color White, Standard, Charging Port Type-C, Cleaning Mode Strong, Gentle, Battery Built-in 600mAh Battery, Power 4W, Voltage 3.7V, Battery Life 45 days, IP Rating IPX7, Material ABS, – IPX7 Waterproof, Size 45x 66x 169mm / 1.77″x 2.59″x 6.65″, the whole body washable, Features – Double Nozzle & 0.6mm Water Flow, Weight 280g, – 1350times/min Hight Frequency Plused Water Flow
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
1. ($49.59): 13f142
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGZB6651, AFfbG10, BGBFAFF2019, BG3119ZHI, BGFEQ301, BGHOMEG12, BGAFF10OFF, bGhOnEy10, BGdragonBoat, bgshOOp10, BGHome15%, BGHOMEA15%, BgcLuBofErtA10, BGCuponation10, BGHONEY2110, BG10OFFAFF, BGwhielabel
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Do you need price history chart (for all/most countries) for ZHIBAI XL1 Electric Irrigator? There we go.
Price records source(s): Gearbest, 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)).