Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Model: AL103, Cable Plug: 3.5mm, Color: Black, Cable Length: 1M, Product Weight: 7.8g
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.
Link: Banggood product page
1. ($2.69): BGAFF10OFF
2. ($2.69): bGhOnEy10
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): AFfbG10, 502C6B, BGCITYADS2019, BGVDay10%off, BGMPB2020
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Xiaomi ZMI AL103 Braided 3.5mm Jack Audio Cable 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)).