1. Material: ABS, aluminum alloy 2. Applicable: applicable to all smart phones 3. Built-in battery(Battery) : 500mAh lithium battery 4. Power supply mode: USB charging 5. Interface type: PS/2 6. Vibration mode: no vibration 7. Size: 7x3.6x2.5 cm 8. Weight: single radiator: about 135 grams, package: about 200 grams Packing list: Mobile phone radiator x 1 Manual x 1 Charging cable x 1