If you need more detailed information and other models, please email us. We will promptly reply to you. Technical Characteristics: 1.Double-needle-four-thread synchronous structure and strong cloth-feeding system ensuring feeding precision and perfect seam. 2.The sewing speed is controlled with imported needle position motor and control box. 3.Equipped with pneumatic auto presser foot,equipped with special encorder to position needles. Low noise,small vibration stable performance.