Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Eachine NANO VTX FPV Transmitter (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. This is new product in my database, so I don’t know if this price is good.
Link: Banggood product page
Coupon (18.39 USD): BGMatt2022
Coupon (18.39 USD): BGToys8
Coupon (18.79 USD): BG00c906
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
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:
Old coupons (from the oldest to the newest): BGNANOVTX11, BGEachine11, BGCITYADS2019, 2020CNY, Parts8, bGpAnDacHeCk, BGVDay10%off, BGEachine10, aff7off, BGMPB2020, BGAFF7OFF, bGhOnEy10, bgshOOp10, BGTT10, 13f142, BGEachine2021, BGCuponation10, BGRCEachine, tRaDetRaCKeR, 8wEbgaInS5, BGToys1, BGRCT10, BGJUNEGSG9, Cuponation9
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Eachine NANO VTX FPV Transmitter (-3 USD)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: 12.8 USD.
You can set price alert (for Banggood).