Editable Smart Badge E-Ink Screen Bluetooth Guest Card 3.7inches E-Paper Reusable

3.7-inch 3color with NFC Bluetooth badge

1. Pixel: 240 * 416, DPI: 129

2. IP68 waterproof and dustproof

3. Can be connected to cloud platforms, supports batch image transfer

4. Supports Q1 standard wireless charging

5. Supports receiving short message vibration reminders