$13.99 – 300m WiFi Repeater Signal Booster (Banggood, Aliexpress: Packing: 11.7cm * 11.7cm * 6.7cm., Name: 300M WiFi Repeater, Product: 8cm * 5.2cm * 7.5cm., Color: white / black, Technology: white glossy surface, Material: shell ABS (the best price with coupon)).
I have checked all old coupons and price is $13.99 for 300m WiFi Repeater Signal Booster (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood ($13.99)
Banggood warehouse is located in China. Coupons for 300m WiFi Repeater Signal Booster? Nope, there’re no coupons in Banggood. Price? From what I can see this price is higher than average price ($12.49).
Link: Banggood product page
Price: $13.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGae2847, BG589b2e, BGcb5ddb
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for 300m WiFi Repeater Signal Booster? 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)).