high-low tone/duble tracks amplifier/touch screen,blue backgroud LCD,support MP3,USB,CD,walkman etc. ITEM ... area Width4500mmHand PulseYesHeart Rate ControlledYesWindow displayLCD window blue back light,With touch screenFolding MechanismYesMax user weight150kgCarton size1780*7750*3350mm 44.5*31 ... /40'HQ 3.0hp newest model high quality home treadmill with touch screen and fan