Brief Introduction: This product used wireless charging technology, the charger and the rechargeable batteries are charged without any contact. It used electromagnetic induction and AC induction technology, and the CPU to control the corresponding induction AC signals produced by the coil at the send and receive end. There is a coil on the charger as well as the battery pack, when the charger is connected with power, the charger will search whether there is a battery pack at the location of the battery and charge for it automatically. When in charging station, the red LED will glitter, and when fully charged, the CPU will cut off the charge voltage automatically, and the blue LED will be on. Using direction: 1. Connect the plug of the Wii wireless charger with the AC adapter, and then insert the adapter into the AC power. 2. The LED indicator on Wii wireless charger lights blue. 3. Put the battery pack into the corresponding concave of the charger, when the charger searched the battery pack, the corresponding LED on the charger turns red and will glitter, it shows it's in charging station. 4. You can also insert the battery pack into the Wii remote controller, or put the remote controller into the silicon case and then put it into the charger to charge for it. 5. When fully charged, the LED stop flashing and lights blue. Specifications: 1. Charging Current: Max: 180MA 2. Charging Voltage: Two Ni-MH battery series connection 3. Weight: 4. Shell Material: ABS 5. Size: 210*145*40MM 6. Product color: White 7. Cable Length: 540MM 8. Accessories: Charge Cradle: 1PCS, Battery Pack: 2PCS 9. Package: Features: 1. Wireless charged, you can charge for the battery pack no need of direct power plug or any physical connection. 2. It subverts our understanding of traditional chargers completely. 3. It uses electromagnetic induction, and produce current through the induction of the primary and secondary coil, and then convert power from the transfer end to the receive end. 4. Put the remote controller and the battery pack on the charger to charge for it, eliminate the trouble of cables. 5. It breakout restrict of cables, wireless make it more freedom. 6. Two charge groups, independent controlled. 7. Two-color LED indicates the charging status. Red LED flashes: In charging station, and when fully charged, the blue LED is on. When connected with power and do not put battery pack into it, the LED on the charger lights blue. 8. The maximum charge current is up to 180MA.