$14.99 – SONOFF RF BridgeR2 Smart Wi-Fi Hub 433MHz RF (Banggood, Aliexpress: Working temperature: -10°C~40°C, Product Dimensions: 62x 62x 20 (mm), Material: PC V0, Certificate: CE / FCC / Declaration of EU RoHS Conformity, Power Supply: USB 5V, Security Mechanism: WPA-PSK/WPA2-PSK, Wireless Standard: WiFi 802.11b/g/n / 433.92MHz (the best price with coupon)).
Use coupon and get SONOFF RF BridgeR2 Smart Wi-Fi Hub 433MHz RF for $14.99 (from Banggood). Get coupons, create price alert or check price history out! Best price?
Latest coupon and price update (UTC):
Banggood ($14.99)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. Price? Let’s see… Average price for this item is $16.99 and current one is $14.99, so it’s a good price!
Link: Banggood product page
Price: $14.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG364550, ADMITAD2212, BGSmart6, BG1382fb, MVC8SPRING, 8BGwbg2204, 2203ActiesNL, tRaDetRaCKeR, BGJUNEGSG9, BG15Sonoff, BG8ReviTrage, Cuponation9, 9OFFSUMMER
(you can check these old coupons out, but these probably won’t work)
Aliexpress
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Price history and price alert
Check out price history chart (for all/most countries) for SONOFF RF BridgeR2 Smart Wi-Fi Hub 433MHz RF. The lowest price was: $13.99.
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)).