Blue Nylon Night Sports LED Light Armband Light Bracelet Specification:Battery Version

1. Full length: 35cm.2. Perimeter: 29cm.3. Width: 2.5cm.4. Individual weight: 30g.5. Material: Nylon webbing with LED electronics.6. Blinking mode: constant light fast flash slow flash off (4 modes are controlled by switch).7. Battery: 2 LIR2032 35mAh 3.6V button batteries (button-type rechargeable lithium ion batteries).8. Battery type: 60 hours of light time and 2-3 months of normal use. The battery can be replaced by yourself. It is available in convenience stores or supermarkets.9. USB charging model: it can be used for about 2 hours after charging for 20 minutes and can be recharged repeatedly for a long life.10. Applicable to: outdoor sports night running festival parties etc.