Efficient semiconductor refrigeration technology: using advanced semiconductor cooling chips to quickly absorb heat and cool down, effectively reducing the temperature of mobile phones or devices, avoiding jamming or battery loss caused by high temperature, suitable for long-term navigation or charging. Stable pasting design: equipped with strong glue or nano adsorption base, firmly pasted on smooth surfaces such as car dashboards and center consoles, anti-slip and anti-shake, sharp turns or bumpy roads can also remain stable without blocking the driving line of sight. Intelligent cooling system: built-in silent fan assists heat dissipation, dual-effect cooling improves cooling efficiency, and low noise operation (≤25dB) does not affect the in-car call or music experience. Strong compatibility: retractable clamping arm or magnetic structure is suitable for 4-7 inch mobile phones, some models support horizontal/vertical placement, taking into account navigation and video viewing needs. In-vehicle safety design: hidden wire movement to avoid entanglement; USB interface plug and play (5V/2A), does not occupy the cigarette light position, some models have LED temperature display, real-time monitoring of heat dissipation status. Product Details Product Dimensions ‏ : ‎ 9 x 6.2 x 185 cm; 220 g Package: 1 set Mobile phone cooling bracket