Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Modulations: PXX or CPPM (auto-detected), Upgrade Interface: Smart Port, Compatibility: R9 series, Vin Voltage Range: 4V-12.6V, External Power Supply: 4V~12V (2s Li-Battery is recommended), Telemetry Interface: Smart Port, or it will damage), (*3s Li-Battery is not recommended as external power supply
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. There is one great coupon!
Link: Banggood product page
1. ($77.39): TTxBG10
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 and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 10R9M, 502C6B
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for FrSky R9M 900MHz RC Transmitter Module.
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)).