Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Rapoo 9000G Wireless Keyboard Mouse Set (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. Uhm… There’s no price history (in my database) for this product right now.
Link: Banggood product page
Coupon (35.99 USD): BGAFF10OFF
Coupon (35.99 USD): BGCuponation10
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGCN9000G, BgcLuBofErtA10, 13f142, BGHONEY2110
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Rapoo 9000G Wireless Keyboard Mouse Set (-3 USD)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: 35.99 USD.
You can set price alert (for Banggood).