Description:Product material:Metal(Aluminum)+Electronic components Colors:blackBright degree:range 300MBulb's lifetime:100，000hoursVoltage:4.5V (3X1.5V)Battery:3XAAA or 18650(without battery for the transport)On-off Style:touch-tonepacking:1*flashlight1*4200 mah Rechargeable battery1*charger