Kimdrox Ultra Small Mini DC Power Module DC 3V to 5V 1A USB Battery Converter Step Up Module Charge for MP3/MP4/Phone Samsung Galaxy S3 iPad iPhone 4S 5 6/6 Plus etc

Applications:
DIY a mobile power supply, only need one battery, you can output 5V voltage for your phone, MP3, MP4, PSP charger, very easy.
In order to power your electronic devices when your device needs 5V power supply, when you only have lithium battery, this module can be directly step-up to 5V, solve your problems.

Package Includes:
1x DC-DC Converter