Feature: 1. [Voltage Protector] The voltage protector socket guards your home appliances like refrigerators from voltage surges, ensuring they operate safely. 2. [Dual USB Ports] With dual USB ports on this voltage protector outlet, you can easily charge your smartphones and electronic devices, practical and versatile. 3. [High Safety] Equipped with short circuit guard, overload guard, and overvoltage guard, this surge protector socket ensures safe working for electronic appliance. 4. [Countdown Timer] The socket features countdown timer function, with options of 0.25, 0.5, 1, 2, 4, or 6 hours, ensuring efficient power management. (Only applicable to USB ports.) 5. [High Strength] Crafted from PC material, our voltage protector socket has high impact strength, ensuring lasting use in various environments. Specification: Item Type: Voltage Protector Socket Material: PC Load: 16A Power: 3680W USB Ports: 5V 2.1A Setting Time: 0.25, 0.5, 1, 2, 4, 6 Hours Operating Temperature: 0℃ to 40℃ Accuracy: ±3 Minutes/Hour Size: Approx. 108.5x54x69mm / 4.27x2.13x2.72in. Package List: 1 x Voltage Protector Socket 1 x Instruction Manual Note: The timer function is only applicable to USB ports.