Emergency Portable Hand Crank Power Dynamo USB Charger
1. 100% brand new and high quality.
2. Portable mini emergency hand-cranking dynamo charger suitable for outdoor activities, good outdoor emergency power supply for your mobile phones or other digital devices.
3. Transform the mechanical energy into electric energy, charge your mobile phone or digital devices at any places and at any time, convenient and useful.
4. Mini size and light weight design can be easy and convenient to carry.
5. Output voltage: about 5.5V; Current: about 300mA-600mA
6. Size: 58 x 46 x 31mm; weight: 70g