Xiaomi LYEJ07LS Youth Bluetooth 5.0 Earphone (Banggood, Aliexpress: Transmission Distance 10m, White, Model Number LYEJ07LS, Optional Color Black, Standby Time (h) 70 hours, Net Weight (g) 6.5g, Microphone Yes, Talking Time 3.5 hours, Product Dimensions 5.7cm*1.1cm*2.4cm, Battery Capacity 50mAh, bluetooth Chip Realtek, Charging Time 2 hours, bluetooth Protocol HFP/HSP/A2DP/AVRCP, Charging Voltage 5V 200mA, bluetooth Version V5.0 (the best price with coupon)).
Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon 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): BGAFF10OFF, BGXMB50, bGhOnEy10, BGXMB51, 13f142, BGSS10%SW, bgshOOp10, BGELIG0920, BG11SHOP, BG4BW25, BGLOAC1, BGa0b145, BGBuscape01, BGBRPL2, BGHOTSHOP15, BG53e9c8, BGAlerabatKL
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi LYEJ07LS Youth Bluetooth 5.0 Earphone. The lowest price was: $11.99.
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)).