Features: brand new and high quality The power adapter has multi-protections to prevent you and your devices from excessive current, overheating, and overcharging. The durable adapter with a bending test passed cord can keep a good and long-lasting performance. This compact-designed block fits easily into your pocket or handbag. You can charge your devices on the go with this portable charger. The memory capacity of the for smart charging for head is SD card. At present, it is only for phone. When charging, it automatically backs up mobile phone data. USB transmission is fast and supports various brands of micro cards. It is easy to use. Insert SD card, plug in charger, connect power cord, and finally set app. Specifications: Material:Plastic+Metal Color:White Size:2.2x3.8cm/0.87x1.50inches Weight:15g Note: Please allow 0-3mm errors due to manual measurement, make sure that you do not mind before you order. Package includes: 1 x Mobile Phone for Smart Charging for Head