Keyboard Weight: 503g, Mouse resolution: 1300dpi, Roller direction: two-way wheel, Number of buttons: 3, Number of keyboard keys: 108 keys, Keyboard interface: USB, Keyboard Type: Wireless, Mouse type: Wireless Optical, Keyboard Size: 375.5x146x23mm, Mouse weight: 60g, Working method: Optical, Ergonomics: Symmetrical design, Connection method: wireless, Mouse size: 113x64x30mm, Mouse interface: USB.
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Aliexpress
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Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($31.49): BGAFF10OFF
2. ($31.49): BGCuponation10
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): AFfbG10, 502C6B, BGBFAFF2019, BGCITYADS2019, BGVDay10%off, BGTT10, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BgoFErTaSchInA10, BgcLuBofErtA10
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for Rapoo 8050T Wireless Keyboard Mouse Combo. The lowest price was: $23.99.
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)).