The headset cannot connect to two mobile phones at the same time. If you need to connect to another mobile phone, you need to disconnect the currently connected mobile phone and then manually connect to the other mobile phone.

1. The headset battery is low; It is recommended that you use the headset after fully charged;
2. A louder volume will consume power faster; It is recommended that you turn down the volume to see if the usage time is normal;
3. The headset may be in an environment with large electromagnetic interference or there may be obstacles such as walls between the headset and the mobile phone. Please pay attention to keep away from microwave ovens and other objects with large electromagnetic interference when using, and ensure that there is no obstacle between the earphone and the mobile phone.

If you have a Micro USB data cable, you can temporarily connect your computer device or charging head for charging. Direct data cable charging may affect your use efficiency, we still recommend that you use the original charger in the usual use process to ensure the safety of electricity.

You can check it by entering *#06# in the call screen.

It takes about 5 hours to fully charge with the original charger, starting from a complete lack of electricity. Please refer to the actual usage scenario for details.

The maximum standby time of DIZO Star 300 and DIZO Star 500 is 17 days and 13 days respectively. However, the time may vary depending on the usage, so please refer to the actual usage.