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Very good bluetooth module. It works seamlessly with my cell phone (Huawei Y9) and "KZ" headphones. It connects quickly, there are no channel disconnections (right, left), there are no strange noises either. More than 6 hours of battery. They are not as "glamorous" as others, since they are loaded with "micro usb" cable (the cable is included and allows to charge the 2 modules simultaneously). Bring small manual in Chinese and English and a good container. Keep in mind that you must order the correct connection type for your audiophone model, there are 4 types of connectors. Very satisfied with the product. Thank you Banggood!!
Excellent
Great sound quality and very easy to set up. I bought the 0.75mm version which works fine with my KZ ZSN Pro X IEMs.
this drummer's new best friend.
A ++++
The sound quality is great, it's comparable to the KZ-AZ09. Delivery was excellent since they arrived sooner than expected. 22 dollars is more than a fair asking price to me.
best invention ever for specific listeners.
great