Size: 1 Pack Upgraded Version of Wall Receptacle The BESTTEN 3.1A USB Charger/Tamper Resistant Receptacle offers two USB charging ports and duplex Tamper-Resistant outlets. It is an ideal solution for creating a centralized mini charging station for commercial and professional workplaces as well as high-end offices and houses. All-in-one Charging Center This receptacle is a replacement of traditional duplex receptacle. It is able to charge any current electronic devices simultaneously, including smart phones, tablets, e-readers, cameras and MP3 players without adapters minimizing clusters. What's more, it has the capability to charge new device required higher current rating in the future. Easy Installation Like traditional receptacle, the installation only needs to loose and fasten the back and side wires. Please read user manual for details. Safety Fireproof poly-carbonate housing keeps you away from fire risk. The product has got ETL certification. Specifications - Electrical Rating: 20A, 125VAC, 60Hz, 2500 Watts - AC Outlets: 3-Grounded - USB Outlets: 5VDC/3.1A (shared) - Certifications: ETL Listed Package Contents 1 x Duplex AC Wall Receptacle with Dual USB Ports in white 1 x Wall-plate 4 x Insulation Screws 1 x Installation Instructions