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MEMO CX12 Magnetic Phone Cooler with Built-In Detachable Battery Pack
The MEMO CX12 is a clip-on gaming phone cooler built around TEC semiconductor refrigeration technology, designed to rapidly pull heat away from your phone during long gaming sessions, live streams, or heavy daily use. Using the Peltier effect, the built-in semiconductor cold plate actively cools your device rather than relying on passive airflow alone, dropping ambient-adjacent temperatures noticeably during operation.
A full-circle magnetic ring gives the CX12 a strong, secure clip-on fit across phone widths of 62-105mm, while a dynamically balanced fan keeps vibration and noise low during operation. This makes it practical for gamers who need consistent cooling without extra rattling or buzzing interfering with in-game audio or live streaming microphones.
Beyond raw cooling performance, the CX12 adds RGB lighting for a gaming-oriented look, and its detachable battery design allows it to be charged separately from your phone, giving flexibility for how you power and use the cooler day to day.
Key Features
TEC Semiconductor Cooling
A Peltier cold plate transfers heat directly out of your phone body. This is true active cooling, not the marginal breeze of a basic fan. The result: a back panel that runs noticeably cooler than the air around it, so thermal throttling never gets the chance to steal your frames.
Built-in Detachable Battery Pack
Play anywhere. The detachable battery snaps on for cord-free sessions on the couch, in bed, or on the go. Prefer a marathon streaming session? Plug in via Type-C and cool for as long as you like. Total freedom, your call.
Full-Circle Magnetic Attachment
A complete magnetic ring grips the back of your phone and holds firm. Twist, tilt, and swipe through fast-paced landscape play—the cooler stays locked in place and won't slide when the action heats up.
Dynamic Balancing Fan (35–38dB)
Rotor-controlled vibration keeps the fan whisper-quiet at 35–38dB, about as loud as a quiet library. No buzz bleeds into your game audio, your voice chat, or your streaming mic. You hear the game, not the gear.
Wide Device Compatibility (62–105mm)
Built to fit any smartphone measuring 62mm to 105mm wide. That covers virtually every modern Android and iPhone. It slips over slim cases too, so you don't have to strip your phone bare to cool it down.
5500RPM Airflow
The fan spins up to 5500RPM to quickly exhaust hot air from the housing. This keeps the semiconductor plate running at peak efficiency without saturating, so cooling stays strong deep into hour two.
RGB Light Effect
A striking RGB glow adds gaming-grade flair that looks great on camera during live broadcasts. Look as good as you play.
Technical Specifications
Specification | Detail |
|---|---|
Brand | MEMO |
Model | CX12 |
Power Source | Built-in Detachable Battery Pack / Type-C (5V / 2A) |
Power Consumption | 10W |
Product Size | 82 x 91 x 52mm |
Semiconductor Size | 25 x 25 x 4.9mm |
Heat Dissipation Area | 3844mm² |
Cooling Effect | -7°C to -2°C (at 26°C ambient temperature) |
Light Effect | RGB Light |
Fan Rotation Speed | 5500RPM |
Fan Noise | 35dB – 38dB |
Compatible Phone Width | 62mm – 105mm |
Material | ABS plastic, metal components, silicone |

Package Includes
1 x MEMO CX12 Phone Cooler
1 x Detachable Battery Pack
1 x 1-Meter Type-C Cable
1 x Pair of Clips
1 x User Manual
Frequently asked questions
How does the MEMO CX12 cool a phone?
It combines TEC semiconductor refrigeration (the Peltier effect) with a 5500RPM balanced fan. The cold plate draws heat directly out of the phone body while the fan exhausts it, delivering active sub-ambient cooling that keeps frames steady and inputs responsive.
How does the detachable battery work?
The CX12 features an integrated, detachable battery pack that allows for portable, cord-free cooling. You can easily snap the battery on for mobile gaming on the go, or plug it in via Type-C for extended stationary sessions.
Is the fan loud during gaming or streaming?
Not at all. Operating at 35–38dB, the dynamically balanced fan is as quiet as a library room and will not interfere with your voice chat or microphone.
Will it fit my phone?
Yes, as long as your device measures between 62mm and 105mm wide. It works over slim cases too, though thick or rugged cases can weaken the magnetic grip and reduce heat transfer.
Can condensation form on my phone?
Because semiconductor coolers pull heavy heat away from the device, a little moisture can occasionally form on the contact surface in very humid conditions. To prevent it, wipe the plate and phone dry before and after long use, or play in an air-conditioned room.
What is the price of the MEMO CX12 in Bangladesh?
The MEMO CX12 gaming phone cooler is available at Geary BD for 1,350 TK.
Memo Store
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