ATM you can buy RGB Sound Control LED Light 2pcs for $8.69 (in Banggood). Go down and check coupons out. Remember to check price history if it is available. What is best price?
RGB Pickup Lights Sound Control LED Light Smart App Control Color Rhythm Ambient Lamp For Car/Game Computer Desktop Decorative Light – Black 2pcs
Latest coupon code price check (UTC time):
Banggood ($8.69)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. Is it a low price? Looks like this is great price. I didn’t track lower than that in CouponsFromChina database ever.
Link: Banggood product page
Price: $8.69
This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG589b2e
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
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 RGB Sound Control LED Light 2pcs.
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)).