Aliexpress
Click here… to search for KZ AS16 Earphones on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (125.99 USD): BG11PP12
Coupon (130.99 USD): Email5
Coupon (130.99 USD): BGELIG0920
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): TTxBG10, BGss11, BG3CSUM, AFfbG10, aff7off, 8fbade, 502C6B, EARSP11, BGMPB2020, BGAFF10OFF, bGhOnEy10, BG11SHOP
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for KZ AS16 Earphones.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).