Rechargeable LED Reflective Headband includes the following features : 

• Built-in super bright LED headlight with 4 quality LED bulbs
• 3 Lighting modes (high > medium > low)
• Built in with 3.7V/180mAh Li-ion battery
• Support USB charging, battery recharges in 2 hours

Material :

• 90% Polyester
• 10% Lycra

Size closed :

• One size