Wear-resistant Belt: It’s 7- slot design ensures that minimal contact area between belt pulley. And belt for smooth running and effective reduction of wear. Firstly the sound it produces will be lower than 40 dB. Secondly big Step Distance: Thirdly 13” large strides for more comfortable exercise and reduced knee wear. 8 Resistance Levels: 8 Levels of magnetic tension resistance adjustments can provide the user with a more challenging workout.