Unbeatable sound quality for less than 30 euros, despite a little lack of bass in the lower frequencies. The battery life is pretty huge to medium volume receiving Bluetooth The range is not huge and makes minor cuts when too thick obstacles between the player and the enclosure; but do not worry if the enclosure is in a bag and the player in a pocket. The whole is very light and the correct finish. After a year of use without making any special care during transport, metallic paint this black stripes quite marked, but the metal of the grid remains impeccable. The battery life has not changed. Very pleased with this purchase.