When I was updating this page, then coupon price was $66.99 for Audio DSP Noise Reducer DNR Digital Filter SSB (in Banggood). Get coupons, create price alert or check price history out! Do you want to know what the best price is?
Material: PCB, Input Interface: 3.5mm Audio Interface, Package Weight: 170g, Package Size: 120x 11x 35mm, Color: Black, Output Interface: 3.5mm Audio Interface, Power Input: USB Type-C, Product Name: Audio DSP Noise Reducer DNR Digital Filter
Latest coupon code price check (UTC time):
Banggood ($66.99)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Isn’t it too expensive? Actually this is the best price in history according to CouponsFromChina database!
Link: Banggood product page
Price: $66.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGBFDAY8, BGHONEYSP
(system checks these coupons on every price check (like once per 24 hours), 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
Price history (for all/most countries) for Audio DSP Noise Reducer DNR Digital Filter SSB is here.
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)).