You can get CROSIKO LED 4pcs Sound Control Pickup Rhythm Ambient Light Strip for $27.99 using coupon code (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Best price?
CROSIKO LED Sound Control Pickup Rhythm Ambient Light Strip Colorful LED Rechargeable Battery Car Computer Audio Music DJ Atmosphere Lamp – 4pcs
Latest coupon and price update (UTC):
Banggood ($27.99)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. Isn’t it too expensive? Well, this price is higher than average price ($22.29)
Link: Banggood product page
Price: $27.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG02b8c7
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
I could not find it 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 CROSIKO LED 4pcs Sound Control Pickup Rhythm Ambient Light Strip.
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)).