With a built-in 7.4V/4400mAh rechargeable lithium battery pack, charging time is about 2.5hrs. Lasts 2 hours with high current digital effect pedals; lasts more than 10 hours with 8 analog pedals. One 5V/1A output USB port, compatible for charging cell phones, tablets and some other portable devices. Bright LED for effect pedal board lighting & battery level indicator, automatically stop charging be fully charged. 8 DC Output Jacks: 4 jacks 9V 100mA; 3 jacks of 9V 500mA; 1 of 9V/12V/18V adjustable output jack,maximum current is 100mA. JOYO Power Supply for Guitar Pedal (JP-05),directly sold by manufacturer of JOYO Technology Co.,LTD which established at 2006. Introduction: JOYO JP-05 power supply has 8 DC outputs and 1 standard USB output, one of the 8 outputs can be switched between 9V, 12V and 18V for the odd pedals in your collection that just want a little bit more voltage. The 5V USB output enables you to load your cell phone, iPad and other portable devices. Specifications: Input voltage: DC 9V, 2000mA Output voltage: 9V,12V,18V, USB: 5V/1A Output polarity: external positive and internal negative Dimensions:146mm*65mm*35mm Weight: 620g. Package included: 1x JOYO JP-05 Guitar Pedal Power Supply 1x DC 9V 2A Charger Adapter 1x Reversed Polarity Cable 8x DC Power Cable 1x User Manual.