Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – AirAux AA-WM2 10W Bluetooth V5.1 Speaker 2000mAh [EU] (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood.
Link: Banggood product page
Price: -3 USD
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
Old coupons (from the oldest to the newest): BGAAWM2X, BGAAWM2FX, BGa0a5da, BGHUWM2K, BG89800c, BG00cb7f, BGAAWM2XS, BG9f0ac3, BG993f0e, BGAUDIO, BGc19e35, BG825ea9, BGe724e6, BG768278, BGaff0c4, BGf36986, BG486464, BGc44cf3, BG7f49ad, BG87c982, BGa235d7, BG3ce366, BG055fbc, BGa352fd, BG4e4e01, BGc7c6d6, BGa54c48, BG706cb3, BG098c4f, BGd11082, BG35bfa5, BG366620, BGf076ed, BG3f1970, BGa85335, BGAudio3, BGdd362b
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – AirAux AA-WM2 10W Bluetooth V5.1 Speaker 2000mAh [EU] (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for AirAux AA-WM2 10W Bluetooth V5.1 Speaker 2000mAh.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).