Product selling points: 1. Dual USB output: supports 5V2.1A dual USB interface, can quickly charge two devices at the same time 2. Efficient charging performance: intelligent device identification, provides stable current, faster and safer charging 3. Embedded design: saves space, suitable for desktops, walls and other scenes, beautiful and practical 4. Wide compatibility: suitable for mobile phones, tablets and other USB devices, strong versatility 5. Safety protection: built-in multiple protection to ensure safe and reliable charging process Product parameters: Input voltage: AC 100-240V Output voltage: 5V Output current: 2.1A Frequency: 50/60Hz Efficiency: ＞80% Wiring method:The product does not distinguish between positive and negative poles. Insert the 1.5 square copper wire directly into the two round holes (neutral and live wires) to charge mobile phones, MP4s, etc. Color: Black Material: PC Package Contents: 1*USB Power Socket 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.