YOTOSAN Smart 16-Outlet Home/ Office Over Current Protector Worldwide Voltage Power Socket Vertical Tower Multiple Socket With 2 USB Outputs for iPhone iPad, Samsung and other Devices (Green) 16 surge-protected outlets with 2m retractable power cable perfect for your home or office;2 USB ports auto-adjust charging rate for all of your tablets, smart phones, digital cameras Wire core of socket is conformable with international standard, and have overload protector With independent control switch and power light in each layer, use expediently and save power Vertical power socket use hierarchical design, which remedy the horizontal socket's disadvantage of encumbrance; It is for position for each layer, and each layer has one control switch and LED indicator; Advanced flame-resisting materials, fire-proof,water-proof,high temperature resistant. So it is safe and reliable with CE and ROHS certified.It brings more convenience in your life by stable circular base; Tower design, socket hole in different surface(4 universal ports including 2 USB ports); you can get power at any angle you want, you can charge your device more freely. Fireproof ABS Plastic, PVC copper cable,Use standard plug,plug and play.Easy and safe to use for elderly and children