Antenna length: 60mm, Bandwidth: 500 MHz (5.5-6.0 GHz), Connector: SMA/RP-SMA(Optional), Center frequency: 5.8 GHz, Color: Purple, Green, Shell material: Imported PC + ABS, Matching: VSWR < 1.2 (at center frequency), Gain: 2.5 Dbi, Black, Axial ratio: <3db, Weight: 7.3g, Item number: Lollipop 3, Radiation efficiency: 98%, Red (Optional), Polarization: RHCP, Center frequency: 5750MHz. You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
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. There is one great coupon!
Link: Banggood product page
1. ($21.24): Parts8
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGFL33, BGFL3, bgssaff9, BGFoxeer1016, 502C6B, BGBFCR13, 2020CNY, 0e7f33, bGpAnDacHeCk, aff7off, bGhOnEy10, BGTT10, BGBLACKF11, BGAFF7OFF, BGCHRIS75, BGFoxeer5, 13f142, BGCuponation10, BGRU, BGDAVIS
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – 2pcs Foxeer 5.8G Lollipop 3 FPV Antenna [EU] ($-3)
Price history and price alert
Price history (for all/most countries) for 2pcs Foxeer 5.8G Lollipop 3 FPV Antenna is here. The lowest price was: $11.
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)).