Fengmi C2 Formovie 4K Laser Projector (Banggood, Aliexpress: Throw Ratio 0.23: 1, Power In 100-240V @50/60Hz, Standby Power <0.5W, Color gamut 110% Rec.709, Picture Size 80-150", Android System Android 9.0, Built-in storage 16GB eMMC high-speed flash memory, APP Third-party APP, Sound effect Dolby/DTS certification, Keystone Correction 8 points keystone correction, Standard Resolution 4K(3840x 2160), Net Weight 7Kg, Display Technology 0.47" DMD, RAM 2GB DDR4, WIFI Dual frequency 2.4/5GHz, Operating System FengOS, Noise range <=32dB, Bluetooth 4.2/BLE low power, Dimensions 456x 308x 91mm, Brightness mode Viewing mode / office mode, CPU Amlogic T972, Light Source ALPD, Audio power 15Wx 2, Power Dissipation <300W(Highlight model) (the best price with coupon)).
Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
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 Hong Kong. I’m afraid that there’s no working coupon in Banggood.
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/5cd
Old coupons (from the oldest to the newest): BGFMTVC2, BG7736f6, BGf57bdf, BG36e2fc, BG88b4e3, BG04d754, BGFMCR22, Cityads2210, BGFCM22, BGMRCF22, BGMZFC22, BGMKZH139, BGZCM139, BGZFCM22, BGAProjector, BGProj, BGAudioVideo, BGZFH139, BGAFVA, BGZPMDC, BGZHDN, BGKH139, BGSMFL, BG66b9a0, BGee3603, BGHIFG160, BG5a0e00, BGizchina02, BGjoao139, BGb6ccda, BGa293d8, BGProjcc
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Fengmi C2 Formovie 4K Laser Projector is here. The lowest price was: $1299.99.
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)).