Resolution Ratio 4K, Sensor Technology CMOS, Charging Voltage DC-5V/1A, APP Support Android/iOS, Storage Type Removable (Card/Disc/Tape), Memory Card Type MicroSD/TF, High Definition Support 4K, Storage Micro SD card / Max support 128GB, Recording Definition Ultra High Definition, Battery type Built-in rechargeable polymer lithium battery, Video Format ASF, Player Software VLC Player/SMPlayer, Size 44x24x44mm/1.73×0.94×1.73in, Material ABS, Built-in Memory Size Non.
Just check coupons out (with price alert and history). What is 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. You can get coupon down below.
Link: Banggood product page
1. ($6.99): BGe1f246
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGxip564, 13f142, BGTYOC564, BGISOC564, BGTYC564, BGISC564, BGISOD564, BGSP564, BGISSP564, BGSPHOME62, BGTYSY564, BANGGOODSD, BGPOS564, BGUdb25, BG00c906, ADMITAD2212, 2022ACTIESNL, Terence, Tabby20, 8Couponsde, MVC8SPRING, 8BGwbg2204, 2203ActiesNL, tRaDetRaCKeR, 8wEbgaInS5, BGJUNEGSG9, Cuponation9, BGca595e, BG589b2e
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for A9 4K Wifi Mini Hidden Camera? There we go. The lowest price was: $6.99.
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)).