Aliexpress
Click here… to search for Digoo DG-C1R Alarm Clock on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
Coupon (18.37 USD): BG00c906
(CouponsFromChina.com tip: you should apply the coupon in your cart 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): C1R888, C1R699, d476e8, 502C6B, 77C1R, 50CIR, 0404digoo, 34DGDE, vipupgrade8, 4d4166, TTxBG10, BGC17, BGPDGV1R, bgssaff9, AFfbG10, BGBFAFF2019, BGCITYADS2019, BGCRM6, BGTY2K, BGVDay10%off, BGDG15, BGMPB2020, BGAFF10OFF, bGhOnEy10, 20%DG422, BGdragonBoat, BGSS10%SW, BGDGASG, BGHome15%, BGHOMEA15%, BgcLuBofErtA10, BGHBHJ105, BGCuponation10, 13f142, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGisZX189, BGisZX689, BGis689, BGisly689, BG10OFFAFF1, BANGGOODSD, BGAlerabat1, Terence, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG2e031b, BGJUNEGSG9, TTSUMMER8, Cuponation9
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for Digoo DG-C1R Alarm Clock.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).