Bluetooth® wireless technology
Before using Bluetooth®
This watch (YF20) is connected with a smartphone through Bluetooth® wireless communication technology to provide various functions.
Use of the Bluetooth® communication technology is not legally permitted in some countries or regions.
Check the legal regulations this watch must complies before use it.
- Using this watch in a country or region where it is not permitted may be punished under its law.
- Communication using Bluetooth® may be monitored intentionally or accidentally.
Do not use this watch for important communication or any communication involving human lives.
- The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.