Segolike Mini Electric Power Emergency Charger Hand Crank Dynamo Power Supply with USB Port For MP3 / MP4 Player,Phones Green Description: - Can be repeated use, light weight, small size, convenient travel use . - Dynamo Emergency Hand Crank Cell Phone MP3 MP4 Charger (Not for Smartphone). - It is designed for emergency use, just wind it by hand slightly, it can charge the device freely. - Built-in LED lights up and power is being generated and your mobile phone is being charged. - Hand crank 3 minutes, support 5~10 minutes talking, and standby time over 1 hour with flashlight for emergency use.Specification: - Material: ABS - Size: 60*43*30mm/2.36*1.69*1.18inch - Maximum output voltage: DC 6V - Maximum output current: 300 mAPackage Includes:1 Piece USB Hand Dynamo Charger with Light.