Sony walkman is a sound device. It is not a very new device. And not very old. I am gonna tell you about sony walkman nwz-b142f. I t is a very good device. Best for mp3 playing. You can play mp4 also. Sony walkman is compatible for Mp3 and Mp4 both. As it is a sony product I think I do not have to tell anything about this. At first one of my friend bought this. And after that by his recommendation my other friends also bought this.
Their device is running very good. Not a single device is still got damaged or have faced any problem. Any one of them have not faced any problem. The devices are running very good. Sound output is also very good. Sony`s sound is great.You would get an awesome experience. This device is very user friendly. Any one can control this. Features are very good. It`s logo on the front of the device makes it more attractive. Sony is a very reliable company. And this device is also very reliable. Value for money. It has an extra ZAP and an extra Back button. Durability is also long.