Product name: LED luminous arm band Size: armband length: 32CM width 2.5CM Material: nylon webbing + matching LED electronic specifications: 28CM-32CM Luminous color: red/orange/yellow/green/blue/pink/white/ colorful Flashing mode: long light. fast flashing. slow flashing (controlled by switch) Battery: 2PCS CR2032 button battery drive Charging model: charge for 30 minutes, it can be used for about 2-3 hours Light-emitting time of battery type: -50-60 hours, 2-3 months of normal use; the battery can be replaced by itself, which is convenient Available in stores or supermarkets Pass CE, ROHS, EN471 splash water, clean detachable electronic parts This product is suitable for: outdoor sports, night running, large-scale festivals, concerts, promotions, cheering, employee benefits, large-scale company events, etc.