Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Name Neck Massager, Full Charging Work Time 2.5h, Rated Voltage 5V, Stength Level “1-6: fit for daily neck care
7-12: fit for stiff neck pain
13-18: fit for chronic spine strain”, Physiotherapy Time 15min/time, Charging Port USB, Two-speed Constant Temperature Massage “Speed 1: 37-40°c
Speed 2: 41-43°c”, Size 7.5x14cm/2.95×5.51(The widest stretchable: 20cm/7.87inch), Rated Power 3W
Aliexpress
I could not find it 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. There is one great coupon!
Link: Banggood product page
1. ($30.68): 2022ACTIESNL
apply it in your 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
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): BG1707f2, BGUSAM397, BGMCL02, BG766706, BGfefece, BGc14085
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for KALOAD Smart Neck Meridian Massager is here.
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)).