Just check coupons out (with price alert and history). What is the best price?
Bandwidth: 500KHz, Code type: GFSK, Online update: not supported, Steering range: 90° L: 45° R: 45°, RF power: <20dBm, Sensitivity: 1024, Charging interface: mini USB, Channels: 3CH, Brand Item: FlySky, Size: As Shown, Battery: 3.7V (800mAh), 2.4GHz system: AFHDS, Antenna type: external single antenna, Item Name: GT3C Transmitter with FS-GR3E Receiver, Display: LCD screen, Chargeable: Yes, Model type: Car and boat, DSC port: USB (output: PPM), Temperature range: 0 ℃ — + 60 ℃, RF range: 2.4-2.48GHz, Remote control distance: 100-200m (ground), Low voltage warning: <3.5V, Throttle range: 45° F: 30° B: 15°, Humidity range: 20% -95%, Color: Orange, ANT length: 86.5mm, Weight: 1000g
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 code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. There is no active coupon in my database right now (for Banggood). There’s only 1 record in my database, so I have no idea if the price is OK.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGGT3C, BGFKY11, 7d18f7, bGhOnEy10, BGflysky11, bgshOOp10, BGGT3CAG, BGRC902, BGGT3COT, BGGT3CJA, BGRCRR9, BGCuponation10, BGDAVIS, BG43b480, 13f142, Parts8, BGd65cf9, BGradio9, BG70e5fc, BGGAL8, BGRCParts8, BG1efeb0, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, hoNEYbGdeAlS, BGRCT10, BGJUNEGSG9, BGRADIORU, BGToys8, JanBGCoupon8, BGSaleFeb8, BGMatt2022
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – FlySky GT3C RC Transmitter with FS-GR3E ($-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: $52.79.
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)).