Material ABS+Electronic Component+Silicone, Massage Time 15 Miin, Massage Heads 12, Type Massager; Massager+Remote control, Temperature 40-45℃, Gears 20 Gears Adjustable, Color Red/White, Modes 12, Power Supply Built-in 450mah lithium battery.
Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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. Only one coupon available!
Link: Banggood product page
1. ($25.49): BG75597c
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/i1u
Old coupons (from the oldest to the newest): BG6eb429, BG06def7, BG5809db, Cuponation9, BG8d1c31
(there’s a little possibility that old coupon will work)
Price history and price alert
Do you need price history chart (for all/most countries) for 12D TENS Low Frequency Pulse Shoulder Neck Massager? There we go. The lowest price was: $16.78.
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)).