Runtime 30 minutes for high gear / 60 minutes for low gear, Weight 5.9kg, Charger 12.6V DC /5.0A /230V/50Hz, Li-lion battery 11.1V DC 8.8Ah, Battery case size 210x155x75mm / 8.3×6.1x3inch, Model BLUEDRIVE S, Wireless remote control 3-button remote control with waterproof armband holder, Motor power 12V DC 240W, Speed 4-6km/h, Accessory Safety coil leash and safety magnetic snap / universal attachment bungee kit / remote control with armband, Product PF-240S.
Check coupons or create price alert down below. Do you want to know what the best price is?
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. ($624.00): Sports23q1
2. ($651.73): BG589b2e
just apply this code 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): BG3a3eb5, BGa5bea4, BG93d003, BGissamWW, BG2c373e, BG4492f3, BG92b4bf, BGe46870, BG4c6e9d, BG0aaea5, BG7055ab, BG13178f, BG81d5f0, BG2cf2d8, BGe436e7, BGty712is, BGfc8a9a, BGISSAM469, BGissam38999, Cuponation9, BG79e08c, BG24c894, BGissam15wts, BG94ba1e, BG073996, BgGoodie9, BGc363fd, BG00c906, BG8OFFCOUPON, TTBLACK5, JanBGCoupon8
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for Aqua Marina BLUEDRIVE 12V Electric Underwater Booster is here. The lowest price was: $389.99.
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)).