Stereo Wireless Bluetooth Headphones [EU] (Banggood, Aliexpress: Playback time: 16 hours, Distortion: <1%, Dimensions: 183.5x 179.5x 83.5 mm, Battery: 300mAh, S / N rate: > 80dB, Music playing time: 16 hours, Frequency range: 20-20KHZ, Wireless range: Up to 10 m/33 feet, Charging Time: About 2 hours, Driver’s Dimension: 40mm, Package weight: 800g, Wireless Profile: A2DP1.2 / AVRCP1.4 / HFP1.6 / HSP1.2, Talk time: 16 hours, Wireless Version: 4.1, Product weight: 230g, Impedance: 32O +/- 15%, Standby time: 300 hours (the best price with coupon)).
Go down and check coupons out. Remember to check price history if it is available. What is the best price?
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 code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. There are no active coupons for this product, but the price is pretty low isn’t it? I don’t really know if this price is reasonable, coz there’s no price history in my DB.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGHOTSHOP15, BGAlerabatKL, BGd173b4, BGAudioVideo, BGAUDIO, BGAudio9
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
There is only one database record (it was for $10.99), so you can’t see price history chart.
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)).