Contrary to some other cheaper headphones, the M04 is more workable. The padding on the head is not only filled with air, but with foam. As long as he does not sit tight at the head, you can wear without unpleasant pressure him well for several hours. The earcups are softly padded and also cover larger ears well.
The initial strong plastic smell was gone after a few hours balcony.
Pleasantly soft padding on the other hand are the ears, the optimal sit at my normal ears about it and they enclose completely. The size adjustment through the pulling down of the strap ends is ample sized and has enough well even with larger heads.
The complete headset is made of matt, lightweight plastic. Are located on the left ear, the 3 control buttons Play / Pause, Next Song and last song on the right earpiece are on / off / pairing, louder and softer. The keys set out clearly from the housing, have immediately responsive pressure points, can palpate well and serve.
With Bluetooth 3.0 it couples accustomed simply with my Note3. It is switched on by pressing and holding the On / Off button, if the button is pressed any longer, so he is ready to connect. Who wants and a 3.5mm jack cable has, it can also connect to it. Are the headphones connected simultaneously via Bluetooth and jack, the Bluetooth connection has priority.
Also calls can be answered, the on / off button at the same time answer key. The built-in under the right ear microphone is fine, the comparison goes a well.
The Bluetooth transmission is fine. Over a distance of 6 meters everything works without any lag, is a wall, the transfer is stuttering and depending on the distance also interrupted.
The headphones again approaches the player, he combines his own business and the music needs to be continued.
The highest volume, which can also be adjusted on the headphones, is extremely noisy and more than enough. Even at maximum at the player and headphones blaring nothing previously burst rather ears.
Really there is the noise-canceling, you have the headphones on, you can hear almost nothing of his surroundings.
But what is really surprising is the sound for this price. Whenever I use it, I immediately notice its clear reproduction. Although he has a clearly marked bass, but suffer as for many other cheaper headphones here not the other sounds. The highs and mids are clear and pleasant. For this price can not be beat.
Conclusion: Taking account that the cost of the delivered power into consideration, so this is a good processed headphones with surprisingly good sound. Therefore, he has earned its 5 stars.