1. Material: ABS+PC 2. Charging interface: USB 3. Battery capacity: 330mAh 4. Mini and compact, lightweight design, no burden on riding 5. Ultra-long battery life, built-in polymer battery 6. Waterproof design, outdoor riding without fear of bad weather 7. Rubber waterproof switch, press to switch modes 8. USB charging interface, compatible with a variety of devices 9. High elastic rubber fixation, leaving the constraints, suitable for different thickness of seatposts 10. Mode: strong light - slow flash - flashing - fast flash 11. Size: 7 x 1.9 x 1.7cm 12. Weight: 24g
