You can get BlitzWolf BW-SHP15 Zigbee 3.0 16A 3680W Smart Plug for 9.99 USD with coupon (from Banggood). Just check coupons out (with price alert and history). What is the best price?
Latest coupon and price update (UTC):
Banggood (9.99 USD)
Banggood warehouse is located in China. Low/high price? Good news! This is great price, coz it’s the lowest in CouponsFromChina database! One coupon is available. Cool!
Link: Banggood product page
Price without coupon: 10.49 USD
Coupon (9.99 USD): BG444eec
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
9.99 USD – This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Coupon (10.5.2024, $9.99): BG66e66b
Item: BlitzWolf BW-SHP15 Zigbee 3.0 16A 3680W Smart Plug
Countries: France
Old coupons (from the oldest to the newest): BGf02899, BGSHOM15, BGcb63b0, BG9bc45f, 13f142, BGab26c0, BG071041, BGb22800, BGHO859, BGsep923, BGbba4e1, 6GSGIT, BGD11001, BG998f16, BG886696, BGB5001, BGfc7300, BGfe0d48, BGb1c6cf, BG826219, BGdd918d, ADMITAD2212, BGSmart6, BG31360e, MVC8SPRING, BG144de3, 2203ActiesNL, tRaDetRaCKeR, BGTRHS859, Cuponation9, 9OFFSUMMER, bestbuy11, BG83ff83, BG05281c, BG8ReviTrage, BG9761ba, BGFEU72, BGb86760, BG36a90b, BG078dad, BGc9246e, BG7221bb
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-SHP15 Zigbee 3.0 16A 3680W Smart Plug [EU] (-3 USD)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for BlitzWolf BW-SHP15 Zigbee 3.0 16A 3680W Smart Plug.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).