QY7S Sport Earphones (Banggood, Aliexpress: Transmission range: 10m, Battery: 85mAh Li-ion battery (the best price with coupon)).
Get coupons, create price alert or check price history out! Let’s see what best price is ATM.
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Price history (for all/most countries) for QY7S Sport Earphones is here. The lowest price was: $5.
Price records source(s): Gearbest
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)).