You can create price alert here, copy coupons and view price history. Best price?
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):
Transmitter Size: 174x89x190mm, Code Type: GFSK, Package Size: 23.5×21.2×10.6cm, Package Weight: 628g, Control Range: 500m, 2.4ghz System: AFHDS 2A and AFHDS, Model Memories: 20, DSC Port: PS2, Color: Black, Channels: 6 Channels, Model Type: Glider/Heli/Airplane, Power: 6V 1.5AA*4 (Not Included), Output: PPM, 128*64 dot matrix VA73*39mm, ANT length: 26mm*2(dual antenna), FCC, On-line update: Yes, Low Voltage Warning: Less than 4.2V, RF Range: 2.40-2.48GHz, Band: 142, Certificate: CE0678, Transmitter Weight: 392g, Type: Mode 2 (left hand throttle) with color box, white backlight., Display mode: Transflective STN positive type, Bandwidth: 500KHz, RF Power: Less Than 20dBm, Sensitivity: 1024, Charger Port: No
Banggood
Banggood warehouse is located in Europe 
. I can’t find any active coupons for this product in Banggood. This is new product in my database, so I don’t know if this price is good.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGI6A8, 2019SPEDM, BGFlysky, BGss11%fly, Parts8, BGaDmITAd, BGCITYADS2019, BGVDay10%off, BGFS12, BGFKY11, bGhOnEy10, BGflysky11, BGSS10%SW, bgshOOp10, BGRC902, BGRCRR9, 7d18f7, BGCuponation10, BGDAVIS, BGradio9, BG70e5fc, BGRCParts8, BG1efeb0, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, hoNEYbGdeAlS, DealBGimpact, BGRADIORU
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – FlySky i6 FS-i6 RC Transmitter A8S ($-3)
Price history and price alert
It’s a new item in our database, so I can’t create price history chart. We have saved this price in database: $57.19.
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)).