Get coupons, create price alert or check price history out! You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Battery Capacity 2400mAh, Stroke 12mm, Color Black, Weight 1.2kg, Rated Voltage 21.6V 6INR19/66, Power 126W Max., Rated Output 24V/1A, Rated Input 100-240V~50/60Hz / 24W, Noise 55 dB, Battery High Energy Lithium Battery, Size 285*217*64mm, Frequency First Gear: 1300; Second Gear: 1800; Second Gear: 2500; Fourth Gear: 3300, Model Booster Pro 3, Material ABS, Brand Booster
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($180.31): BGCAPITALOS8
2. ($180.31): BGCOUPERT8
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
Old coupons (from the oldest to the newest): BGHB218, BG1224b0, 2203ActiesNL, BGHECARE1, BG4ee866, BGbd354d, BGHOM091, Cuponation9, BG75597c, BGddb59e, BG3e7f26, BG589b2e, JanBGCoupon8, BGSaleFeb8, BGSaleAD, BGMARCHSALE, BGAUGUST8
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Check out price history chart (for all/most countries) for BOOSTER Pro 3 Deep Tissue Massager.
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)).