RF Impedance: 50 ohms, Weight: 1.01g (Tx only / without SMA cable), AV Connector: Solder Pads, Pit Frequency: User/Race Organizer Definable, Power Output: Programmable / 1mW to > 500mW 1, Dimensions: L=18mmx W=13mmx H = 3.2mm, Modulation: FM Video, RF Connector: U.FL (with Locking Pigtail), Video Impedance: 75 ohms, Power Requirements: 5V DC (operates down to ~3.5V / but 5V recommended), Audio: None, TNR Connector: Solder Pads, Power Consumption: TBD, Channels: 48 standard / arbitrary using race wand.
Basically copy coupon, view price history or create e-mail price alert. 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 Hong Kong.
Link: Banggood product page
1. ($33.47): 2022ACTIESNL
2. ($33.83): BG00c906
apply code in your basket (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): 13f142, BGCuponation10, 00c906, ADMITAD2212
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for IMMERSIONRC TRAMP NANO VTX FPV Transmitter. The lowest price was: $29.99.
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)).