2.4GHz system: AFHDS 2A, No ground interference (Transmitting and receiving 1 m from the ground): >300m, Channel delay: <15mS, Antenna length: 26mm (Not including brass contacts), Item Name: FS-A8S Receiver, Data output: 1.5mm*3 Pin PPM/i-BUS/S.BUS, Transfer method: FHSS, Band width: 500KHz, Display method: LED, Frequency range: 2.408-2.475GHz, Band number: 135, RX Sensitivity: -92 dBm, Input power supply: 4.0-8.4V, Modulation type: GFSK, Brand Name: Flysky, Each channel data: depend on the transmitter, Working current: 40mA, Channels: PPM 8CH / i-BUS 18CH, DSC port: PPM/i-BUS/S.BUS, Size: 20*14*5.3mm, Model type: Multi-rotor, Weight: 1.2g. Go down and check coupons out. Remember to check price history if it is available. Best price?
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 price update (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
1. ($16.21): BG589b2e
apply it in your 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): BGbe6c63, BGRADIORU, BGToys8, BGMatt2022
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for Flysky FS-A8S FS A8S V2 2.4G 8CH Mini RC Receiver with PPM i-BUS SBUS? There we go. The lowest price was: $11.99.
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)).