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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
Black Shark Mag-Cooler 4 Pro 27W Magnetic Semiconductor Cooling Back Clip Phone Radiator, Mag-Cooler 4 Pro1. Super Cooling Performance: Equipped with an oversized TEC cooling plate + 7 blade high speed fan + copper cooling plate, 27V high power supports a single body cooling temperature difference of up to 40 degrees Celsius. Combined with the Black Shark Ice Seal cooling system, it can continuously cool down rapidly, solving problems like phone overheating and lag. 2. Stable Magnetic Adsorption & Multi Scene Adaptation: Adopts 12N super magnetic
1. Super Cooling Performance: Equipped with an oversized TEC cooling plate + 7-blade high-speed fan + copper cooling plate, 27V high power supports a single-body cooling temperature difference of up to 40 degrees Celsius. Combined with the Black Shark Ice Seal cooling system, it can continuously cool down rapidly, solving problems like phone overheating and lag.2. Stable Magnetic Adsorption & Multi-Scene Adaptation: Adopts 12N super magnetic adsorption, paired with a detachable grip. It also supports a 1/4 nut interface for live broadcast stands/gimbals, compatible with gaming, live streaming, in-car use, binge-watching, etc.
3. User-Friendly Design: Pioneers vertical air outlet (upper and lower vents) to prevent hot air from blowing onto hands; equipped with dual NTC over-temperature protection that automatically cuts off power when overheated for safer use.
4. Cool Lighting & Smart Interaction: Features RGB lighting (18 customizable beads), and supports one-click lighting effect switching & temperature control adjustment via the Shark Arsenal APP.
5. Upgraded Hardware Configuration: Uses a custom large-size fan to quickly dissipate heat; the cooling plate has thicker grains, with 35% higher efficiency than the previous generation, significantly improving the overall cooling effect.
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1501 reviews
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Product Reviews
★★★★★ 5
A notebook that stands up extremely well to bad weather and harsh working conditions
Color: Tan, Size: 1 Pack
Now that I've used this notebook, I can't see myself using any other kind. I travel a lot and need a notebook with me at all times. That means the notebook I have with me is going to get wet frequently and take a beating in my pocket. This notebook is perfect. Rain/sweat have no effect on my written notes or my ability to write. The pages are thick which prevents tearing. The cover and binding are quite sturdy, rather than getting bent like cheaper notebooks. At 4x6 inches this fits in my cargo pocket without a problem and gives me plenty of writing space. If you are going to carry the notebook in your front pocket I'd suggest the smaller 3x5 version. The ruler on the back page was not something I thought about but has come in handy several times.
No, this is certainly not the cheapest notebook available, but it is a reasonable price for a high quality product. If you are using this for field work, it is probably worth the cost. My work notes are certainly more valuable to me than the couple extra bucks spent. And really, how often do you fill up a notebook? I only go through one every month or two so it's not very costly.
You cannot use gel type pens with this notebook, only normal ballpoint pens or pencils. I suggest using a Fisher Space Pen, it works very well with this notebook (also available on Amazon Prime for under $10)
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Reviewed in the United States on May 31, 2016
★★★★★ 5
Wet proof is great
Color: Blue, Size: 6 Pack
As a nurse, I am able to put this in my scrub pocket and make notes as I go along. I also write down my patients' meds so I can refer to it when the computer is not available or not with me. Since it is wet proof I can sanitize it when (and not if) it gets something on it. I use a ballpoint pen and have used a pencil and none of my writing gets smeared or erased by the disinfectant wipes. Since I have these books stored securely in my locker if something comes up in the future with someone I can refer back to them for answers not found in the chart. I use my book when I am giving shift report which is very helpful when I have to tell the know-it-all nurse every little detail because she wants to eat breakfast instead of reading orders and notes. Some of my coworkers have also ordered their own books. A great product and very durable.
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Reviewed in the United States on June 30, 2020
★★★★★ 5
Great product
Color: Black, Size: 3 Pack
Great for taking notes. Write anywhere
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Satisfied with purchase
Color: Green, Size: 3 Pack
Purchased for outdoor work purposes and they're absolutely worth the purchase. Very durable and waterproof. I actually repurchased for extras. The color is great as well as the size, overall satisfied.
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Reviewed in the United States on March 8, 2026
★★★★★ 4
Pricey but nice.
Color: Orange, Size: 3 Pack
Nice pad, works as intended when wet and dry.
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Reviewed in the United States on January 29, 2026