With many other wireless charging pads on the market, it is essential to place your device on a specific spot for your phone to charge. When you are in a rush, you may set your mobile at an angle, only to discover later that your phone was never charging. To solve this problem, PITAKA designed a wireless charging pad that uses Chain-Coil™ technology. Chain-Coil™ combines multiple overlapping charging coils to enlarge the charging area. You no longer have to place your phone on one specific spot, but anywhere on the charger area.