Xiaomi Sound Pro 40W Bluetooth Speaker (Banggood, Aliexpress: Support A2DP music playback, bluetooth: 5.1, Rated power: 40W woofer + 15W full-range unit, Support IEEE 802.11 a / b / g / n protocol, Lighting: full-color ring galaxy atmosphere lighting effect, Frequency range: 45Hz ~ 20kHz, Wi-Fi: 2.4GHz/5GHz, Wired: 3.5mm AUX IN wired connection, Connect (the best price with coupon)).
Just check coupons out (with price alert and history). You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
10W 5V Solar Panel and Charger 6000mAh Battery Power Bank Charging 2 In 1 Type-C Port for Security Camera Fans lamps Cellphones | $59.36 | – |
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. Well, there is one coupon available right now.
Link: Banggood product page
1. ($291.99): BGAudio9
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG1b5830, BGXIFD191, BGSaleFeb8, BGAudio3, BGAUGUST8
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for Xiaomi Sound Pro 40W Bluetooth Speaker is here. The lowest price was: $219.99.
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)).