Scene Selection, Integrated OSD, Low Voltage Alarm.
Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
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. Well, there is one coupon available right now.
Link: Banggood product page
1. ($26.67): Parts8
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): fb1b14, 502C6B, f62884, d8f2bb, BG15OFFCD1, BGss10%ru, bgssaff9, BGRET, BGBCFPV, bgbcfpv
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 2 another warehouse/versions!
1. China – RunCam Micro Swift 2 2.3mm Lens FPV Camera NTSC ($-3)
2. China – RunCam Micro Swift 2 2.3mm Lens Camera PAL ($-3)
Price history and price alert
Price history (for all/most countries) for RunCam Micro Swift 2 2.1mm Lens FPV Camera is here. The lowest price was: $24.64.
Price records source(s): Gearbest, 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)).