Certification CE / RoHS / FCC, Max Current 15A, Dimensions 75*40*25mm, Max Power 3300W, Input AC100~240V 50/60Hz, Brand BlitzWolf®, Material ABS+PC, Model BW-SS1, Wireless Range 30M, Wireless Type 2.4GHz Wi-Fi, Net Weight 53g, Color White, Rated Power <0.5W, Online User Manual EN / FR / GER / IT / ES / JP, Working Temperature -10~45℃, Working Humidity ≤80%. Price history, coupons and price alert are available on this page. 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 coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
1. ($32.75): Cuponation9
put item in your cart and apply coupon code there 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): BGHONEY2110, BGSHOM15, BGSHE15, 13f142
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for 5 pcs. BlitzWolf BW-SS1 3300W 15A Basic WIFI Switch. The lowest price was: $30.59.
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)).