The 12,000mAh Power Bank is designed to deliver long lasting, high capacity power to all of your mobile devices. The advanced technology and battery power packed into this powerful, durable, stylish, portable and light weight product will amaze and delight. The device has a round button on the side to power on and off, and digital screen to display how much power is left. A really nifty feature is a flashlight that you can use in case of emergency or if there’s a black out. Advanced power lock technology and ensure battery safety. The device will automatic shutdown when short circuit or over charging to avoid damage to your electronic devices. Dual USB output ports are great for charging your many electronic devices.