Battery Type Lithium Battery, Weight 2.5kg, Power 125W Max., Model LightSaber, Battery Capacity 2000mAh, Brand Booster, Plug EU Plug/AU Plug/US Plug/UK Plug, Frequency 1300-3300rpm, Stroke 10mm, Size 260*190*60mm.
Just check coupons out (with price alert and history). 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 and price update (UTC):
Banggood
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BG34153d, BGHB218, tRaDetRaCKeR, BGHECARE1, BG4ee866, BGHOM090, BGBWITHUSIN7, BGBWITHUSA18, BG8ReviTrage, BGf3fa3d, Cuponation9, 9OFFSUMMER, BG75597c, BG8f0483, BG589b2e, JanBGCoupon8, BGc382e4, BGSaleFeb8, BGSaleAD, BGMARCHSALE, BGAUGUST8, BGCAPITALOS8, BGCOUPERT8
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for BOOSTER LightSaber Massager. The lowest price was: $69.99.
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)).