Rapid adsorption: Built-in high-performance air pump, electric adsorption design, can complete adsorption within 5 seconds, double the efficiency of equipment installation. (The specific time depends on the use environment and the finish of the installation .) Long battery life: Built-in 1100mAh large-capacity battery, maximum 120h battery life, equipped with Type-C interface, convenient charging, support charging while using, no longer worry about running out of power. Universal interface: Equipped with multiple 3/8, 1/4 and other positioning holes, widely expanded, easy to install various accessories. Super strong load-bearing: The maximum vertical load-bearing capacity of the electric suction cup is 25kg, and the equipment can be mounted with confidence. Automatic detection and automatic pressure replenishment, maintain effective suction at any time, more firm adsorption, stable load-bearing and no falling. Specification:(4.5 inches version) Name: Car Camera Suction Cup Battery life: 120h Charging time: 2 hours Load capacity: 25KG Size: 4.5 inches Color: Black Material: Aluminum Alloy Package Contents: 1 * Suction Cup Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.