⇔【Visual Monitoring】The vehicle-mounted one-to-four charging head has an LED digital display, which can monitor the battery voltage in real-time, keep track of the car's health status, and see it safely. ⇔【Four-Hole Fast Charging】This car fast charging adapter adopts a four-hole design, no need to wait for charging, and can meet the fast charging of multiple devices at the same time, safe and fast ⇔【Multiple Safety Protection】This car charging head gives you enough sense of security, built-in smart chip, multiple safety protection, multiple circuit protection, better protect your car and equipment ⇔【Long-Time Charging】One-drive four-car fast charging will not be hot for a long time, four diamond-shaped ventilation holes, more effective heat dissipation, and sufficient heat dissipation ⇔【Continuous Charging】Our car fast charging adapter is constantly charged with strong shocks and bumps, with stable elasticity and enhanced anti-skid shrapnel both sides