1. Fingerprint unlocking, safe and convenient, can save 40 groups of fingerprints 2. Ergonomic design, soft backpack, fit the back 3. With headphone/charging hole, convenient to use 4. Large capacity to meet the needs of daily travel 5. Material: polyester fiber + microfiber 6. Battery capacity: 80mAh 3.7V 7. Type-C/USB-C input: 5V 180mA 8. Operating voltage: 3.7V 9. Memory capacity: 40 sets of fingerprints 10. Indicator light: blue, red, green 11. Size: 30 x 16 x 46cm 12. Weight: about 990g