Silicone Invisible Posture Correction

Product Description: New Silicone Invisible Posture Correction. Intelligent Automatic Induction Adult And Child Shaping Anti-Posture Hunchback Corrector.

Material: Food grade silicone collar, imported ABS.
Product size (cm): 18.5 * 14.5 * 2CM.
Weight (kg): net weight: 90g, gross weight: 145g.
Packaging size (cm): 18 * 14 * 3CM.
Single box size / gross weight (kg): 55 * 41 * 32CM / 60pcs / 9.5KG.
Rated input: 5V / 1A.
Working time: The battery life is about 1 week (wearing 4 hours a day).
Rated power: 0.4W.
Battery capacity: 200mAh / 3.7V.
1 * USB charging cable.