Just check coupons out (with price alert and history). What is the best price?
Frequency response: 20-20000Hz, Impedance: 8ohms, Music Time: 6h, Sensitivity: 88dB, Talk time: 6h
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Wireless Earphones Bluetooth Earbuds Low Latency Sports Gaming Headset for HOMTOM ZOJI Z8 IP68 Nokia Lumia 535 630 640 Philips X | $9.59 | – |
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. I found coupon for you. Check this out.
Link: Banggood product page
1. ($36.71): AFfbG10
coupon code has to be applied in shop’s cart 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): TTxBG10
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for Z8 Bluetooth Earbuds is here.
Price records source(s): Gearbest, 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)).