You can take it to power your iPhone anytime anywhere. You will never worry you can’t pick up the phone in the low battery status. You can listen to music at your will. Fantastic! The Better iPhone iPod Kit provides you with the multiple charging options needed when not shacking it up at home. Don't be caught on long drives or stuck at a hotel with no way of refueling your iPhone. This USB travel charger built-in 2600mAh high capacity rechargeable lithium battery and retractable USB cable. Maximize performance. Automatic shut-off. Over-charging protection. Designed for iPod iPhone. Smart wall charger automatically detects and adjusts to the proper outlet voltage. Solving power short problem when you go outside for business or a travel. Take the valuable for your convenience! A great accessory you should have!