$20.99 – Material ABS+PC Mirror, Adjustable Brightness Lever 3 or 5, Size 265x 70x 35mm/10.43x 2.75x 1.37”, Power Supply Micro USB 5V Supply, Weight 260g, Brand Loskii, Model F-8810, Color Black/White Case + White LED Display(Optioanl).
USB LED 3D Music Dual Alarm Clock Thermometer is for $20.99 (in Banggood). Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood ($20.99)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. Low/high price? This price is higher than average price ($19.28) for this item.
Link: Banggood product page
Price: $20.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGCZCL794, BGPDhome48, BGHULY794, BG10OFFAFF1, BGDPO794, BGTYOC794, BGTYSP794, BGSPHOME37, BGUdb51, BGUbf46, BGTYOUI794, BGTYFZ794, BGAlerabat1, Terence, Tabby20, BG497b4c, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, BGc53774, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG00c906, BG713bc0, BG40b8bd, BGJUN94, BGHUXC069, BGJUNEGSG9, BGa3eae7, BGcc78be, BG132683, BG8ReviTrage, BG27cb7c, Cuponation9, BGcd033c, BGsmartbuy5h, BG995ad9, BGdbe184, BG589f4c, BGf625a4, BG6b6f94, BG589b2e, BGAudio3, BGAudio9, BG61ec6c
(you can check these old coupons out, but these probably won’t work)
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
Here is price history (for all/most countries) for USB LED 3D Music Dual Alarm Clock Thermometer. The lowest price was: $15.55.
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)).