$28.99 – Dynamic LED Music Spectrum Clock (Banggood, Aliexpress: Dynamic LED Music Spectrum Clock Picking Lamp Voice Control Wire Control LED Music Spectrum Rhythm Display RGB Light Electronic Clock Voice Activated Car Audio Level Indicator VU Meter Atmosphere Lamp – Black (the best price with coupon)).
Latest update shows that Dynamic LED Music Spectrum Clock costs $28.99 (in Banggood). Price history, coupons and price alert are available on this page. What is best price?
Latest price update (UTC time):
Banggood ($28.99)
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. You probably want to know if this is a good price. Well, this price is higher than average price ($26.99)
Link: Banggood product page
Price: $28.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG9498d2
(I don’t think these’re gonna work, but you can try ’em 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
Here is price history (for all/most countries) for Dynamic LED Music Spectrum Clock. 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)).