Battery High Energy Lithium Battery, Color Black, Stroke 12mm, Chaging Time 90 Min, Weight 1.04kg/2.40kg(Includes Charger And Packaging), Rated Input 100-240V~50/60Hz / 25W, Battery Capacity 2000mAh, Model Booster Pro 2, Working Time 3.5-4 Hrs, Sound Pressure Level 70 dB(A), Power 135W Max., Rated Output 25V/1A, Sound Power 78 dB(A), Rated Voltage 24V DC, Unloaded Speed 1800-3400/Min Max., Size 200*60*285mm, Material ABS.
Go down and check coupons out. Remember to check price history if it is available. What is best price?
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. Well, there is one coupon available right now.
Link: Banggood product page
1. ($176.63): BGCAPITALOS8
paste coupon code in your cart and click Apply 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, BG22f7a1, tRaDetRaCKeR, BGHECARE1, BG4ee866, BGHOM095, Cuponation9, BG75597c, BGd831c9, 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 2 Deep Tissue Muscle 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)).