DC2554A-B-KIT, Demonstration Kit of the DC2556A transmitter, featuring LTC4125, the DC2555A-B receiver, featuring LT3652HV. The DC2555A-B receiver can charge a single Li-Ion battery at up to 650mA with an air gap of 3.0mm to 12.0mm between the transmit and receive coils. The DC2556A transmitter supports Optimum Power Search and Foreign Object Detection features via LTC4125