The quality await you for a very reasonable price. Easy file search. Not tried radio so no opinion. But for my music, easy loading from the computer. A very respectable sound, headphones faithful rendering (listening opera therefore still a bit sharp). Excellent resistance battery. Only flat, but not for the craft itself: this type of helmet is not very practical, the earbuds do not really hold well, so do not move too much! Quiet home or sitting in transport.