なぜ 5 Delivered very quickly and its really good machine.I tried similar model in my friends house so decided to buy one for my apartment. The size is good, not very heavy and it is super quiet when start operating even at high vibration levels.Bluetooth is also working well on my Android phone, not tried on Iphone, speakers quality is not too bad either.Manual is OK, all in Japanese and explain key functions of the machine and give some advice for what type of exercise to make so its good. overall very satisfied especially for such cheap price