Smart Cervical Traction Device Smart Neck Guard Correction Device $ 34.85 Product information: Applicable parts: neck Appearance shape: Near square/round square Number of massage heads: 4 and below Gear position: continuously variable Classification of physiotherapy methods: Infrared Function: Infrared physiotherapy Power supply mode: USB Control method: mechanical Specifications: Red and blue luxury 4 buttons, manual air pressure, red and blue luxury 6 buttons with vibration Color: gold Package: Neck Massager X1