Hi friends. I m telling u sony ercsion powerbank this is to good and this is a two colour avilable white and black this is 10000 mah power betterry power is so good . this a porteble charger cp-v10A model number. and sony brand is very trused. porteble chager is mannual and one usb code. this is a bettry back up is very good . This powerbank four light indicates. for details on operation of the porteblde device, refer to user mannual. this device handle use very easy this is a smmlest size use in travell my experince is very good