You can get SONOFF ZBMINI L2 Extreme Zigbee Smart Switch for $29.99 with coupon (from Banggood). Get coupons, create price alert or check price history out! Do you want to know what the best price is?
SONOFF ZBMINI L2 Extreme Zigbe Smart Switch Two-Way No Neutral Wire Timer Remote Control eWeLink Support Alexa Google Home
Latest price update (UTC time):
Banggood ($29.99)
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database. Well, is it a good price anyway? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $22.19)
Link: Banggood product page
Price: $29.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
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
Price history (for all/most countries) for SONOFF ZBMINI L2 Extreme Zigbee Smart Switch is here.
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)).