You can create price alert here, copy coupons and view price history. What is the best price?
Connecting interface: 3.5mm, Type-C, Driver unit: 57mm, Frequency response: 15~25000Hz, Impedance: 16ohms, Sensitivity: 116dB, Bluetooth Version: V4.2, Battery Capacity(mAh): Built-in 650mAh Li-ion Battery
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Ear Pads For Bluedio T4 T4S Headphone Earpads Replacement Headset Ear Pad PU Leather Sponge Foam | $5.55 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($57.74): AFfbG10
2. ($57.74): EARSP11
3. ($59.16): 7d18f7
this code has to be applied in your 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): d4de0b, TTxBG10, BG3CSUM, BGBFAFF2019, BGCITYADS2019, BGVDay10%off
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Price history (for all/most countries) for Bluedio T4 Bluetooth Headphones 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)).