I am monitoring price for Ace Bluetooth and it is for 43.99 USD now (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Latest price update (UTC time):
Banggood (43.99 USD)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. Is it cheap? From what I can see this price is higher than average price (34.95 USD).
Link: Banggood product page
Price: 43.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGAudio9
(probably won’t work, but you can try them out)
Aliexpress
Click here… to search for Edifier Zero Ace Bluetooth 5.3 Earphones on Aliexpress
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Edifier Zero Ace Bluetooth 5.3 Earphones is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).