1 Getting started
Remove the cradle cap and connect the cradle to a power supplying device with the micro USB cable.
- You can charge the sensor from a computer or mobile battery with a USB port.
- When you are not charging, put the cradle cap on the charging port to protect it.
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2 Charging the sensor
Align 
on the sensor and 
on the cradle, then rotate the sensor until it clicks in order to charge the sensor.
When it is fully charged, the red light will turn off.
- The sensor is delicate equipment. Be sure to place it on a flat surface to prevent it from falling down.
- It takes about 2 hours to charge the sensor.
- While charging, the battery level will not be shown.
3 Attaching the adapter ring
Align the notches of the adapter ring and the racket's grip end, and push the adapter ring into the racket until it clicks.
- You can remove the adapter ring by using the supplied removal tool.
- Remove the logo cap (if any) from the racket before attach the adapter ring.
