Aliexpress
Click here… to search for LERAVAN Mi Home 2x Electrode Pads on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (19.63 USD): BGHealth06
(CouponsFromChina.com tip: you should apply the coupon in your cart 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): HHHHHOT, 6C8E66, 6c3474, bgdeals, vipupgrade8, BGMas20, 502C6B, bgshOOp10, BGHB20, bGhOnEy10, BgoFErTaSchInA10, BGSD89797, BgcLuBofErtA10, BGAFF10OFF, 13f142, BGCuponation10, BGHONEY2110, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for LERAVAN Mi Home 2x Electrode Pads.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).