With the improvement of mobile phone technology and the enrichment of shooting techniques, mobile phone video shooting has become an indispensable part of people's daily life and social interaction. Many video creators have started using mobile phones as their main shooting equipment. I have also seen many content creators use their phones to create videos, as well as professional media using phones to shoot footage. As an amateur video enthusiast, I currently use my phone exclusively to record videos. To achieve better video quality, high-performance video modes of the phone are often needed, such as 4K 60 frames per second, which requires a lot of phone performance. Long-time shooting can lead to the phone overheating and automatically stopping recording, or quickly draining the battery, or even freezing. Therefore, a handy accessory, a heatsink, is needed. Today, I will share with you the RedMagic Magnetic Cooler 4 Pro that I use.

The packaging box is very compact, which means the product is also small. The packaging style with a silver main color tone is full of a sense of technology, giving people an inexplicable sense of favorability. The packaging accessories are very considerate, including a magnetic sheet and a transparent protective film, which takes care of those phones that do not have magnetic function and expands the product's usage range. My phone has only a little magnetic force, and it happens to be able to use the accessories provided with it. First, clean the pasting area with a lens cleaning paper, just like pasting a phone film, and then stick the magnetic sheet on the protective film. The magnetic sheet uses 3M glue, and the attachment is very firm. The Red Magic logo on the front is full of a sense of technology and is very beautiful. The magnetic sheet adds enough suction to make the heat sink firmly adhere to the back of the phone case.

RedMagic Magnetic Cooler 4 Pro is a small cylinder with a diameter of 62mm and a height of 29mm, weighing only 91g, making it very small and lightweight. The outer layer is a transparent plastic protective cover with turbine-like rotating lines, which is in line with the product's definition. The Red Magic logo icon is also designed in the middle. There is a circle of white 12 RGB ring lights inside, supporting various modes such as colorful, breathing, and flowing water lights. Under the outer shell is the red heat dissipation guide plate, an innovative design of aerospace aluminum alloy turbine heat dissipation fins with a hollow suspended airflow channel. Paired with a 5400 rpm/minute 7-leaf high-speed fan, it is more conducive to heat dissipation, and the heat conduction efficiency is increased by 33%. The Type-C interface provides power input, supporting a maximum power of 27W. The outer layer at the bottom of the RedMagic Magnetic Cooler 4 Pro is a high thermal conductivity silicone gel customized by Red Magic, which has magnetism. The inner layer is a 40*40mm ultra-high power TEC refrigeration sheet, derived from Red Magic's fourth-generation semiconductor variable frequency refrigeration technology, providing continuous and stable refrigeration performance.

The RedMagic Magnetic Cooler 4 Pro supports a maximum power input of 27W and supports voltage inputs of 5V/9V/12V. It can be powered by a regular fast charging power bank, making it very practical. The colorful RGB lighting effect is very beautiful, especially in small sizes, it appears more delicate. Combined with the rotating fan, it feels like a powerful source of energy continuously flowing out. Although the fan speed is as high as 5400 rpm, there is no need to worry about accidentally touching it, and it can be used with peace of mind. Especially when using the magnetic suction on the back of the phone to play games, there is no need to worry about hurting your fingers. By comparing the temperature, it can be seen that the cooling effect of the RedMagic Magnetic Cooler 4 Pro is very efficient. With an ambient temperature of 21.5 degrees, the temperature dropped directly by 21 degrees after turning on the radiator, reaching 0.4 degrees. At the same time, the temperature of the air outlet of the RedMagic Magnetic Cooler 4 Pro reached 30.7 degrees, truly reflecting the high cooling efficiency of this Red Magic radiator. Of course, while cooling efficiently, the air blown out is not hot. After the radiator is started, the feel of the silicone surface on the bottom is particularly cool, like an ice cube, and after touching it with your fingers, condensation water can be seen. This shows that the cooling effect is very efficient.

In addition, through the Red Magic exclusive APP, customized settings for the radiator can be achieved, such as adjusting the lighting effect mode and cooling effect, that is, adjusting the cooling range of the fan, which can be run at low or high speed. If it is adapted to the Red Magic phone, the intelligent temperature control function can also be realized. Based on the AI temperature control algorithm, the phone battery temperature can be monitored in real-time by AI, and the RedMagic Magnetic Cooler 4 Pro power can be automatically adjusted to avoid overheating or overcooling of the phone battery, thereby ensuring the safe operation of the phone.

My use case is shooting videos with my phone. The RedMagic Magnetic Cooler 4 Pro is of moderate size and can be magnetically attached to the back of the phone without affecting the use of a tripod, which can meet the needs of different phone photographers. The phone I use is prone to overheating, especially when shooting videos in high-performance mode, but after using the RedMagic Magnetic Cooler 4 Pro, I can easily record videos for more than ten minutes without worrying about the phone overheating and shutting down automatically, or the awkward situation of waiting for the phone temperature to drop before shooting the next segment, which improves my shooting efficiency.