This is my first review and it's because I seriously like this product. The quality and functionality of the PowerCore plus mini is only exceeded by its bargain price. I'm not new to Anker products, they always seem to live up to or surpass my expectations. This little guy is no different. I get at least 2 full charges on my iPhone 5s from the charger from 5% or so to 100%. I take it in my bag or in the car and plug in to get me back up to a full charge on the go. I'm not tethered to a wall/car charger and get a charge just as fast as if I was. It intelligently charges your device as fast as your device allows which is great because over charging or rapid charging batteries can seriously shorten their lifespan.The size of the charger is a cylindrical tube 3.75 inches long by 0.8 inches in diameter. It has an aluminum body that feels robust and well-made. It's coated with a matte black powder coat finish. My unit came with a black mesh bag w/drawstring and a USB to micro-USB 24 inch long (23.5 inch of useable length) charging cable. The mini charger has a micro USB input port and a regular USB output port. Just push the LED status button to see Green (50-100%) indicator light, Yellow (25-49%), or Red (below 24%) to see the level of charge of the unit or to activate the unit to send power to the device you want to charge. The indicator light stays on and shows its capacity of charge remaining while charging. It's very easy to understand and use.The mini is small and light weight enough that I've taken it camping/backpacking too. I plug it into wall power before I leave and I'm good for a full charge anywhere in the field when I need it. I've got a rechargeable headlamp that plugs right into the USB of the mini and charges during the day inside my pack when I'm not using it. Same for my GPS, I plug its cable in to the mini charger and it lights right up for use- any power that isn't running the GPS gets funneled back to the NiMH batteries in it and it slowly charges. This is a great feeling to know that I'm not going to run out of battery power on the devices I need and use daily whether in the field or around the city. I recharge my PowerCore plus mini with the dual port Anker PowerPort Solar 21W solar charger at the same time as my phone if I'm out for a couple days or more which lets me recharge at night or on the move. I've begun researching the 800 mile Arizona Trail that spans the North/South distance of my state from Mexico to Utah and will be using a battery powered personal satellite transmitter to let my family and friends track my position via the web and let's me have access to emergency responders if I get into a life and death situation. All these devices would require literally pounds worth of spare batteries where this system mere ounces. The fact that I can keep power to all my stuff when I might be days away from civilization is amazing but even more incredible when I can do it with a lightweight, affordable, and reliable piece of gear like the PowerCore Plus Mini. Maybe power in the field isn't important to you but tell me your phone has never run out when you need it most! I know mine has. This gives that peace of mind that is well worth $10.I'm considering upgrading to the Anker 5000mAh version portable charger to go further between charges but have been more than impressed by the quality/ease of use to price ratio of the Anker PowerCore plus mini. I highly recommend it, you will use it often and I don't want to be caught without it. Thanks Anker for making great, reliable, high quality, and affordable products! Keep it up and I'm a customer for life.