Dimension: 46.5x 27x 14.4mm (1.83″x 1.06″x .56″), Operating Range: >1.5km (Full Range), Operating Voltage Range: 4V-10.0V, Operating Current: 100mA@5V, RSSI output: analog voltage output (0~3.3V), Weight: 16.8g (.59 oz).
Go down and check coupons out. Remember to check price history if it is available. Do you want to know what the best price is?
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 coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. This is new product in my database, so I don’t know if this price is good. One coupon is available. Cool!
Link: Banggood product page
1. ($46.99): BG00c906
just apply this code 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): BGVDay10%off, BGFSX8R, BGFrskyFB, bGhOnEy10, BGSS10%SW, bgshOOp10, BGX8RNV, Parts8, BGRCRR9, BGCuponation10, BGDAVIS, 13f142, BG70e5fc, BGGAL8, BGRCParts8, Tabby20, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, hoNEYbGdeAlS, BGJUNEGSG9, BGRCT10, BGRADIORU, BGToys8, BGSaleFeb8, BGMatt2022, BG589b2e, BG8FORMULAMX
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – FrSky X8R 2.4G 16CH Receiver ($44.09)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $31.49.
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)).