A smart device for back posture alert ✨ It helps you pay attention to your back posture while sitting, and when your back bends excessively, it gives you a light vibration to remind you to adjust your posture. ✅ Light vibration when bending ✅ Light and comfortable ✅ Easy to use ✅ Suitable for work, study, and sitting for long periods ✅ Rechargeable 📦 New product For orders and inquiries, contact me via Haraj private message