Specification Product model: JD036-2 Product specification 1. Appearance and structure: the sample surface is clean and free of scratches, and the fasteners should rotate flexibly and not fall off easily; The sample shoulder loop buckle can rotate 360 °; 2. Overall dimension: length: 85mm ± 2mm; Width: 37mm ± 2mm; Height: 33mm ± 2mm 3. Mass ≤ 82.5kg; 4. Working mode: switch between flashing state, lighting state and shutdown state by pressing the key; In flashing state, tap the shoulder lamp shell to switch between flashing state and shutdown state; 5. Working time > 13H; 6. Visual effect at night ≥ 300m; 7. Flashing mode: the flashing mode is blue light 4 times, red light 4 times, blue light 3 times, red light 3 times, blue light 2 times, red light 2 times, blue light 2 times, red light 2 times, red and blue light 4 times at the same time; 8. Battery capacity: 3.7V 650mAH; 9. Drop reliability: free fall to the ground at a height of ≥ 3m and normal use; 10. Flashing frequency: (1.4 ± 0.2) Hz; 11. Enclosure protection grade: IP5X; 12. Waterproof grade: IPX4;