-The shell is made of ABS+PC flame-retardant material, sturdy and durable -Full 3.5A single USB charger adopts top IC solution, overvoltage and overcurrent protection -Synchronous rectification, charging is not hot, with smart IC multiple protection -Strong compatibility, easy to carry and use Specifications: -Model: CS51 -Material: ABS+PC flame retardant material -Input: 110V - 240V 50/60 Hz -Output: 5.0V/3.5A