Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
RadioMaster TX16S MKII V4.0 16ch 2.4G ELRS RC Transmitter | 238.35 USD | – |
 |
RadioMaster TX16S MKII V4.0 16ch 2.4G ELRS RC Transmitter | 245.99 USD | – |
More on Aliexpress… Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (505.99 USD): BGToys8
(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): BG8RCToy, hoNEYbGdeAlS, BGRCT10, BGJUNEGSG9, BGRADIORU
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for RadioMaster TX16S MKII MAX PRO Lumenier RC Transmitter AG01 is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).