According to my DB the lowest price is 138.99 USD for Blitzwolf BW-V4 1080P Projector (in Banggood). You can create price alert here, copy coupons and view price history. Do you want to know what the best price is?
Latest coupon and price update (UTC):
Banggood (138.99 USD)
Banggood warehouse is located in China. Is it expensive? Pretty sweet, this is the lowest price I have ever noted for this product! There we go – there’re 2 active coupon codes!
Link: Banggood product page
Price without coupon: 155.99 USD
Coupon (138.99 USD): BGREUPV4BW
Coupon (139.99 USD): BGKAOZN
(CouponsFromChina.com tip: put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
138.99 USD – This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
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:
Coupon (15.4.2024, $155.99): BGDKUD
Item: Blitzwolf BW-V4 1080P Projector
Countries: CzechRepublic, Hungary, Poland, Slovakia(SlovakRepublic)
Old coupons (from the oldest to the newest): BG589b2e, BGDMSAC, BGCBNUE, BGALK539, BGDNSRK, BG773de3, BG9e1416, BGZK539, BGNZK539, BGc3a830, BGZMSAA, BGProjcc
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Blitzwolf BW-V4 1080P Projector [EU] (-3 USD)
Aliexpress
Click here… to search for Blitzwolf BW-V4 1080P Projector on Aliexpress
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Blitzwolf BW-V4 1080P Projector is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).