2150 Student Humpback Vibration Reminds With LCD Hanging Neck Corretor(Black)

1. Non-sensory design, no top chest, no blocking, no restraint
2. Lightweight and comfortable, no pressure to wear
3. Scientific angle reminder, correct sitting posture through vibration reminder
4. U-shaped design is ergonomic, fit the neck curve, no sliding
5. Material: ABS + silicone
6. Charging voltage: 5V
7. Rated current: 0.12A
8. Rated power: 0.6W
9. Charging time: about 3.5h
10. Battery capacity: 150mAh
11. Charging port: USB
12. Suitable age: 4 years old and above
13. Size: about 26 x 9 x 1cm (straightened)
14. Weight: about 70g

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