The ZENS Wireless Power Bank and Phone Holder allows any Qi-supported mobile device to charge anywhere. Yes, of course you’ve heard of wireless smartphone chargers. But, most of the time, they need to plug into a wall outlet. So you’re still tied down by a cord. This wireless charging sleeve is different because it’s a power bank as well. Which means that you can simply pop your phone in the sleeve, and you’re good to go. The wireless charger uses a 5200 mAh battery that can charge most smartphones at least two times. This is enough to help out you and a friend. And thankfully, there are four LED lights to keep you aware of just how much battery is left in the power bank. This way, you never run out when you need it most.