$16.99 – TWE-24 VU Meter Tower DIY Kit LED Music Spectrum (Banggood, Aliexpress: TWE-24 VU Meter Tower DIY Kit LED Music Spectrum 24H/12H Time Format Colorful Voice Control USB 5V Adjustable Sensitivity Brightness Control 6 Display Modes – Unsoldered Version (the best price with coupon)).
According to my DB the lowest price is $16.99 for TWE-24 VU Meter Tower DIY Kit LED Music Spectrum (in Banggood). Price history, coupons and price alert are available on this page. Best price?
Latest coupon and price update (UTC):
Banggood ($16.99)
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database. I think you want to know if the price is good. Looks like this is great price. I didn’t track lower than that in CouponsFromChina database ever.
Link: Banggood product page
Price: $16.99
This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
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
Check out price history chart (for all/most countries) for TWE-24 VU Meter Tower DIY Kit LED Music Spectrum. The lowest price was: $16.99.
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)).