its wonderful acoustics equipped with the"ultralownoise digital effects"will make you full of praise.playing loud music phone the best way to easy to carry and you trip or in the countryside to enjoy the convenience of anytimeanywhere music. Limits of recharging by the charger of handset.The duration of charging is 2-3 hours.the period of revolution is 3-5hours Color box packing, 30PCS/box box size: 59.4*26.6*34.5cm N.W.: 18.3KG G.W.: 19.3KG fitting: Nokia transfers 3.5, Sony turns to 3.5, 3.5 turn to 2.5.