Smart hunchback correction belt corrector

Product Name: Smart Sensor Posture Correction Device
Charging interface: Mini-USB Android interface
Battery specification: 400mA/3.7V
Specification: free size
Charging time: about 1.5 hours
Material: ABS+PC+ high-strength elastic nylon belt
Charging current: 500mA
Function: Spine correction, anti-kyphosis, correct sitting posture
Charging voltage: DC5V
Packing size: 15*15*5CM

Weight: 0.2KG