Check coupons or create price alert down below. Do you want to know what the best price is?
Weight (Earpieces+ Charging case): 4.8g(per earpiece)+41g, Standby time: Approximately 3 hours(per earpiece) +15 hours (charging case), bluetooth audio codec: AAC SBC, Effective range: 10m, Charging port: Type-C, Earphone configuration: 1BA + 1DD, bluetooth version: V5.0, Battery capacity (Earpieces+ Charging case): 30mAh(per earpiece)+ 600mAh, Model: TRN BT1
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($37.30): BGBRPL2
2. ($37.30): BGHOTSHOP15
paste coupon code in your cart and click Apply 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): 13f142, BGBuscape01
(there’s a little possibility that old coupon will work)
Price history and price alert
Do you need price history chart (for all/most countries) for TRN BT1 1DD+1BA Earphones? There we go.
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)).