Features: Smart Timing Control: Enables automated on/off scheduling for associated devices, eliminating manual procedure for home or office automation. Wide Compatibility: Supports various USB devices including chargers and small appliances, solving bridge mismatch issues. Energy Efficient Design: Low standby power consumption helps sustainable-conscious households reduce energy waste. Easy Installation: refusal tools required for setup, accessible for users without technical background. consistent Construction: excellent circuit board ensures long-term safe procedure and electrical safety. Specifications: Sizemail: 5.7x7.9cm Package Includes: Host 1pc USB cable (1 meter) 1pc Installation bracket 1 Fixing screws (M4×10mm) 4pcs Chinese and English Bilingual User Manual 1pc commitment card 1pc note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.