I have just checked coupons. The lowest price I could get is $11.49 for DUMBORC X6FG 2.4GHz 6CH RC Receiver with Gyro (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
DUMBORC X6FG 2.4GHz 6CH RC Receiver with Gyro Sensitivity Adjustment for RC X6 Radio Transmitter Remote Controller
Latest coupon code price check (UTC time):
Banggood ($11.49)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). Is it expensive? Hmmm, price is higher than average (which is $10.35 right now), so better set price alert down below…
Link: Banggood product page
Price: $11.49
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGMatt2022, BG589b2e
(there’s a little possibility that old coupon will work)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for DUMBORC X6FG 2.4GHz 6CH RC Receiver with Gyro.
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)).