IMCO CoBand K4 User Manual page 12

6.2.3 Notification reminder
The tracker supports notification reminder including incoming calls, SMS, QQ, WeChat and other Apps.
Click "Smart reminder" -> turn on the notification reminder -> a "Bluetooth Pairing Request" will appear -> Click
"Pair".
6.3 24-hours format
You can change the time format from 12-hour to 24-hours to click the button on the App.
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