Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 3 another warehouse/versions!
1. China – KZ ZS10 HiFi Hybrid Earphones Black NoMic (-3 USD)
2. China – KZ ZS10 Earphones Red NoMic (-3 USD)
3. China – KZ ZS10 Earphones With Mic Blue (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database.
Link: Banggood product page
Price: -3 USD
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
Old coupons (from the oldest to the newest): d4de0b, e2bcea, TTxBG10, aff7off, BG3CSUM, bgssaff9, AFfbG10, affbg10, 502C6B, BGBFAFF2019, BGCITYADS2019, BGVDay10%off, EARSP11, BGAFF10OFF, BGMPB2020, bGhOnEy10, BGSS10%SW, bgshOOp10, 7d18f7, BGELIG0920, BG4BW25, BGLOAC1, 13f142, BGa0b145, BGBuscape01, BG651551, BGBRPL2, BGHOTSHOP15, BGAlerabatKL
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 3 another warehouse/versions!
1. China – KZ ZS10 HiFi Hybrid Earphones Black NoMic (-3 USD)
2. China – KZ ZS10 Earphones Red NoMic (-3 USD)
3. China – KZ ZS10 Earphones With Mic Blue (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for KZ ZS10 Hybrid Earphones With Microphone.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).