Specifications:Hand-winding charger with the interface of USB.Dynamo cellphone charger, your own miniature power station.Built-in extra flashlight. Built-in LED lights up and power is being generated and your phone is being charged.Safe to use and won't harm or damage your mobile phone.Reusable and convenient for travel with light weight and compact design.Puts power in your mobile when there's no power available.Charges your mobile phone without using grid electricity, sunlight, cells or batteries.30 seconds of cranking = 5 minutes of bright light.2 minutes of charging = up to 6 minutes of talk time or up to 30 minutes of standby.Type: ChargerMaterial: Metal, PlasticMaximum Output Voltage: DC 5.5VMaximum Output Current: 600mAFeatures: Emergency, Travel, Hand Dynamo Charger, Green, Environmental-friendlySize (L x W x T): 6cm x 4.9cm x 3.1cm/2.36inch; x 1.93inch; x 1.22inch; (Approx.)Notes:Do not rotate too fast maintain 100-120 rotations per minutes, please no rollback.Keep the charger away from heat ,fire, water and other cool places.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Included:1 x USB Hand Dynamo Charger with Light