$31.99 – Xiaomi WXJSO2YM Wireless Keyboard Mouse Set (Banggood, Aliexpress: Connection method: 2.4GHz wireless connection, Product net weight: keyboard 534g (without battery) mouse 45g (without battery), Product material: plastic / metal / etc., Receiver interface: USB-A interface, Working temperature: 0C~40C, Support system: Windows10 and above, Number of keyboard keys: 104, Rated input: 1.5V =- 50mA(keyboard) 1.5V= 50mA(mouse), Product size: 438x129x31mm (keyboard) 108.5×57.5×35.6mm (mouse), Product Model: WXJSO2YM (the best price with coupon)).
According to my DB the lowest price is $31.99 for Xiaomi WXJSO2YM Wireless Keyboard Mouse Set (in Banggood). Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Latest coupon and price update (UTC):
Banggood ($31.99)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. Is it expensive? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $29.87)
Link: Banggood product page
Price: $31.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG589b2e, BGcf924d, BG4443d7, BGec3a68, BG3a328a, BG5b4410, BG0725b6, BG3574fd, BG8FORMULAMX, BGc7b7a7, BG3d4651
(these codes were not working in latest coupon update, but you can check them out anyway)
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.
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi WXJSO2YM Wireless Keyboard Mouse Set. The lowest price was: $24.99.
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)).