nano belt for back pain relief and massage

• 3-in-1 design combining heating, vibration massage and back support • Adjustable heating levels and vibration modes for customized comfort • Ergonomic belt structure for full back coverage and support • Built-in 2600mAh rechargeable battery for portable use • Lightweight wearable design for daily and professional use • Suitable for distributors, wellness centers and OEM customization • Supports OEM, ODM and private label projects