Propeller: 40mm 3-blade 1.5mm shaft hole, Transmitter: Literadio2 SE Transmitter, Accuracy of auto-hover: Horizontal ±0.2m / vertical ±0.3m (under no wind environment), Receiver protocol: Frsky D8, TX mode: Mode 1 & Mode 2 optional, Flight distance: 80m (in wide & undisturbed environment), Goggles: VR02 Goggles, Flight time: 4-5min, Height positioning: Laser/ Barometer, Camera tilt degree: 30°, Camera: C02 FPV Micro Camera, Flight controller: Lite 1-2S Pro brushless FC, Takeoff weight: 33.19g (without battery), Battery: BT2.0 450mah 1S Battery (external), Positioning system: Optical flow/ Barometer/ Laser, Position locating: Optical flow (effective height 0.3-3m), VTX: 25mW, Power system: 1S, Motor: 1102-18000KV Brushless motor.
Basically copy coupon, view price history or create e-mail price alert. 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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($245.69): Cuponation9
2. ($248.39): BGJON8
3. ($248.39): BG8ReviTrage
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
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): drones6, BGCetusPro, Drones6, BANGGOODSD, BG6c167e, CouponsDE, 00c906, BG2777db, Tabby20, CouponsdeFPV, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, hoNEYbGdeAlS, BGJUNEGSG9, BG874251
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for BetaFPV Cetus Pro 1S RTF Drone with Goggles is here. The lowest price was: $225.99.
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)).