Sports mp3 player portable mp3 player series philips gogear internal memory 2 gb storage media flash memory audio formats mp3 mp3 vbr wav wma output mw 2 x 2 1 mw battery life audio 6 h power supplies rechargeable polymer lithium battery charge via usb connections usb 20 headphone 35mm jack function upgradeable firmware organiser id3 tag battery charging indication dimensions 41 8 x 15 x 41 8 mm weight 19 g