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.

1. Maximum cooling capacity: Both models use advanced superconducting materials and patented ICEMAX cooling technology. However, the AICE 3 features a thicker superconductor and 8 air ducts, providing slightly higher maximum cooling capacity. Meanwhile, the AICE Lite boasts the largest cooling plate on the back.

2. Cooling area: AICE LITE is 50% larger. The sensor behind the neck is removed and replaced with a large cooling area, making AICE LITE's cooling area the best on the market.

3. Fan: AICE 3 has a large all-round fan that surrounds the neck, upward and downward; AICE LITE has a large upward and downward fan.

4.AI mode: Both are equipped with AI chips and sensors, which can actively adjust according to changes in data. AICE 3 is equipped with 6 high-end sensors. In addition to detecting temperature, it can also monitor health data such as heart rate, blood oxygen, and exercise, adjust temperature and wind speed more accurate in real-time and display your physical status on the APP. AICE LITE is equipped with two sensors, body temperature and ambient temperature, for AI adjustment.

5. Battery life: AICE 3 is equipped with the largest battery on the market at 7000 mAh, and AICE LITE is equipped with the second largest battery at 6000 mAh on the market. Both support pass-through charging!

6. Others: AICE 3 has a color touch-sensitive display, a microphone and speakers for immersive music listening and phone calls. As well as heart rate, blood oxygen and exercise data sensors that monitor physical health data in real time, you can check your health and exercise data on the machine or APP at any time; AICE LITE focuses on cooling / fan / heating capabilities; AICE LITE is 20% lighter.

The above are the main differences between the two cooling masters, hope this will be helpful to you!

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.

AICE LITE is specially optimized for possible hair pinching situations.

We use German precision processing instruments to process the machine to ensure that the gaps between the various parts of the machine are minimized. At the same time, we also added a protective net to the air outlet of the fan to solve the root problem of hair being sucked into the fan or caught in the gap.

You can adjust to the AI mode through the mode adjustment button on the product (when the button is displayed in white) or adjust to the AI mode in the App.

Yes, AICE LITE support pass through charging! You can use with your power bank or charging port on the car to enjoy max cooling all day long!

The air duct design of AICE Lite has been experimentally verified and can provide strong and quiet wind power at lower speeds.In addition, the app also has a one-click mute mode, which can actively reduce noise significantly.

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

Scan the QR code or search APP Store/Google Play to download the "Metaura" application

Official website download app link: 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.

Click "设置" in the upper right corner of the APP, select "语言" on the "设置" page, and then switch "语言" to "English".

【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

Please download the App and connect the product to solve the problem. The App will automatically match the language of your country for your AICE 3.

1. Switching method: Press and hold the main action button

2. Indicator :

Steady white: smart mode

Steady blue: cooling mode

Green Lighting: Natural Wind

Red light on: heating mode

3. Air volume/temperature adjustment:

There is a +/- button above the main action button-

Short press +/-: adjust air volume and temperature mode

Long press +/- in AI mode: set the target temperature

【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.

Please don't worry, we will process it as soon as possible after receiving the order. Usually the goods will be shipped within 1-3 days of placing the order, and tracking numbers and reminders will be sent to you via email.

【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

Orders in the United States and Japan usually arrive within 3-5 business days after ordering. Orders from other countries usually arrive 7-15 working days after the order is placed.

We provide a variety of logistics methods including UPS, FedEx and global fast logistics. Fast and safe delivery to any country.