All Swift DNA sensors have wireless QI charging. Qi chargers use induction to transfer energy to your sensors during charging.
With Duo systems, we provide a protective charging sleeve with Qi charger in-built. Just slide the sleeve over the sensor, and connect the supplied DC adaptor to mains power. Plug the other end into the charging sleeve.
For NEO systems, these QI chargers are in-built in the carry case. Place the Sensors in their storage positions, and ensure the mains cable(s) is connected, and the mains power is turned on.
The power switch on each Sensor will illuminate while charging, and will turn off once charging is complete.