حزام مشد للظهر الكتروني

Advantages:

 Modern technology to help people sit in the correct way

 High strength rubber bands.

 The device vibrates if you sit incorrectly

 Built-in 500mAh/3.7V rechargeable battery

 USB charging feature is available

 Charging time: about 2 hours

 Size: Standard and adjustable

 Power: 0.4 watts

 Cover dimensions: Height: 13 cm, Length: 5 cm, Width: 13 cm

 Product dimensions: Height: 8 cm, Length: 2 cm, Width: 7 cm