9V USB Power to 2.1x5.5mm Male Connector Cable
This USB cable is connect it to any battery pack with a USB port and you are ready to power your pedals.
USB to DC5.5 * 2.1mm charging cable power supply cable hole.
Datasheet: Click Here
Total Length: 1M
Cable Length: 90cm
DC power plug size: diameter: 5.5mm , inner diameter: 2.1mm(positive)