$68.99 – EDUP WiFi Amplifier 2.4G/5.8G 4W Dual Band Signal Booster Long Range Wifi Signal Extender with Dual Antenna High Power for Drone – 5.8G.
The coupon price for EDUP WiFi Amplifier 5.8G 4W Signal Booster is $68.99 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Best price?
Latest coupon and price update (UTC):
Banggood ($68.99)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. Well, is it a good price anyway? I have never seen better price than the current one in CouponsFromChina database, so it’s the best!
Link: Banggood product page
Price: $68.99
Additional Banggood coupons: first page and second page
This is the best price ever noted in my database!
Old coupons (from the oldest to the newest): BG16ce09, BGESJY8
(you can check these old coupons out, but these probably won’t work)
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.
Price history and price alert
Price history (for all/most countries) for EDUP WiFi Amplifier 5.8G 4W Signal Booster is here. The lowest price was: $68.99.
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)).