it's an old speaker. Not working. charging port need to change. that is a micro USB receiver. it will get easily replaced in 50 to 60 rupees. I can repair but i get bored of it. using from last 2 year. it has a 2gb pendrive. 2 speakers in like new condition. battery is 50%. 351+54 prerecorded song. Three mode to play Radio, Bluetooth and recorded songs.