Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
JumperRC T-Lite V2 JP4IN1 RC Transmitter | 79.15 USD | – |
 |
JumperRC T-Pro V2 RC Controller ELRS/JP4IN1 | 100.82 USD | – |
 |
JumperRC T-Pro V2 RC Controller ELRS/JP4IN1 | 138.21 USD | – |
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (57.37 USD): Parts8
(CouponsFromChina.com tip: 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
Old coupons (from the oldest to the newest): BGaDmITAd, BGCITYADS2019, BGMD10, BGJPN30, 2020CNY, BGVDay10%off, bGhOnEy10, bgshOOp10, BGRC902, BGRCRR9, 7d18f7, BGCuponation10, BGDAVIS
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for Jumper JP4IN1 RC Transmitter Module? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).