Dell Active Pen PN556W User Manual page 10

NOTE: Pairing information is lost when you remove the coin-cell batteries.
To pair the pen with your device, see
1 Remove the top cover from the pen.
1 pen
2 Remove the coin-cell battery holder.
NOTE: For more information, see
holder.
1 top cover
10
Pairing with a Bluetooth
2 top cover
Removing the coin-cell battery
2 coin-cell battery holder
device.