For garbage. It is heavy, my conversation partners couldn't hear me well, and the battery "loses" 10% per hour of standby.

I have the N1 rose gold. I bought it a bit expensive....18 euros.
Not good for prolonged use at all.
Delay in ON/OFF.
Short battery life (while it states PLAY MUSIC TIME 3.5h, it actually lasts about 2.5) and a little before it runs out of power, a Chinese woman with a loud sound "jumps out" to warn you probably about the end of the battery, and it hurts your eardrum.
One good thing, it charges quickly.
I do not recommend it.

Satisfactory product for its price. The main drawback for me is the lack of a separate on/off switch. To turn it off or on, you have to press and hold the central button for a long time. Approximately 7-8 seconds. This makes it impractical for someone who only wants to open it to receive or make a call.

For cheap, it does everything very decently!!!!
Good volume, clear conversation, and it works well with both devices I use it with! It's worth it!!!