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.
Go down and check coupons out. Remember to check price history if it is available. 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.
Link: Banggood product page
1. ($180.31): BGCAPITALOS8
2. ($180.31): BGCOUPERT8
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
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
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for BOOSTER Pro 3 Deep Tissue Massager is here. The lowest price was: $99.99.
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)).