To achieve optimal battery performance, kindly note the following considerations during the initial 1-5 charging cycles of the AICE3: The battery may exhibit inaccurate battery power. To ensure comprehensive battery activation and maximize its operational lifespan, it is advised that within the first five charging cycles of AICE3 usage, when the battery level approaches the critical threshold of 30%, connect the device to a power source until the battery reaches full charge, followed by an additional 3 hours of charging. This step is of paramount importance for accurate battery activation. By adhering to these guidelines, you can significantly enhance the overall longevity of the battery while mitigating potential issues.

When executing firmware updates, it's imperative to ensure the device has sufficient battery charge and maintains a stable Bluetooth connection. Additionally, once the firmware upgrade is initiated, refrain from engaging in any actions that might disrupt the device's operation. This ensures a smooth upgrade process and the accomplishment of a successful one-time upgrade.

With every firmware upgrade, there is a consistent enhancement in device performance. Furthermore, these upgrades may also encompass periodic development of new features, reflecting our commitment to continuous innovation.

If you need to turn the device off, please remember to turn it totally off via the button on the neck part. Another place will let the device in stand by which will also consume the power until the battery runs out.

①Because the fast charging protocol cannot be recognized in the low power state, please uses a regular USB A to C charger to charge for more than 5 hours when the device runs out of battery.

②Normally, you can use a 9V-2A or higher fast charging head and charging cable to achieve fast charging.

【Attention】In order to avoid ① situation, it is recommended not to totally run out of the battery, and remember to press the main button on the back of the neck part to ensure that the machine is totally turned off.

https://youtu.be/ebSAm1tn980

Please control this function via the APP.

Step 1: Click ... in the right up on the main page of the APP. Step 2: Turn on the music call function.

In order to provide better cooling performance. We design accessories to absorb the heat of the neck, machine, and environment. And according to other customers' voices, it helps a lot! If I didn't send the accessory to you before and if you need it, please send me your shipping address and phone number according to the following format to ensure the package is delivered successfully asap.

• Country:
• Name:
• Stree:
• City:
• State:
• Zip Code:
• Phone Number:
• Prefer AICE3 Color:

please follow these steps to connect it.

0. Turn off the "Wearing Detection" via the APP or Device https://youtu.be/ii-4BbpK_3A 【If it is success, you don't need to do the following 1-4 steps】
1. Redownload your APP via our official website. https://us.ranvoo.com/pages/download
2. Reset the device according to this video: https://youtube.com/shorts/lc9YUfSdwzg
3. Then forget the device in the Bluetooth list to reset the Bluetooth:https://youtu.be/Wx6chIHrJmg
4. Then connect the APP to your device to update the firmware to the newest version: https://youtu.be/78NNbouB2CM
5. Ensure your device almost 100% battery

Please ensure the device has sufficient battery charge and maintains a stable Bluetooth connection. Additionally, once the firmware upgrade is initiated, refrain from engaging in any actions that might disrupt the device's operation. And please follow this video to upgrade the firmware again:https://youtu.be/hd7L7Id3baw

Redownload your APP【Metaura】 via our official website. https://us.ranvoo.com/pages/download

【Attention】The APP can only connect to one AICE3 at a time, and when connecting, make sure your AICE3 is not connected to other people's phones

1. Redownload your APP via our official website. https://us.ranvoo.com/pages/download
2. Reset the device according to this video: https://youtube.com/shorts/lc9YUfSdwzg
3. Then forget the device in the Bluetooth list to reset the Bluetooth: https://www.youtube.com/shorts/Wx6chIHrJmg
4. Then connect the APP to your device to update the firmware to the newest version: https://youtu.be/78NNbouB2CM

Click the link to view the detailed user manual for AICE 3: https://drive.google.com/file/d/1-q9Ckw3HA8YyI8GfRuJ5JtesEG73gN6g/view?usp=drive_link

Need to adjust it via the APP: https://youtube.com/shorts/Vmpmh0rTCjA

①Please ensure the GPS right of the APP is turned on. ②Send me the city you live in, will reflect it to the product manager to check in the system.