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OD: 3.8 * 1.6mm, Interface Technics: Gold-plated, , Packing: PE Bag, Jacket: TPE, Brand: Vention, Length: 0.5 / 1 / 1.5 /2 / 3 / 5m, Model: BANH, Name: 3 5mm Male to Male AUX Cable, AWG: 29AWG, Color: Gray, Interface. 3. 5mm Male, Shell: Aluminum Alloy, Conductor: Enameled Copper
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BANGGOODSD, 00c906, BG00c906, ADMITAD2212, 2022ACTIESNL, Terence, Tabby20, 2203ActiesNL, BG1efeb0, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BGJUNEGSG9, TTSUMMER8, Cuponation9, BGWSCYT1
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Vention BANH 3.5mm Male to Male Aux Audio Cable 5m.
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)).