1. Environmentally Friendly Abs Material, Safe To Use Without Welding. 2. The Lcd Screen Displays The Charging Progress, And The Built-In Flash Is More Intimate. 3. Support Overvoltage Protection, Overcurrent Protection And Short Circuit Protection. 4. Compact And Design, Easy To Carry. Widely Compatible With Mobile Phone Cameras And Other Digital Devices. 5. Does Not Contain Batteries, Just Box Name: 4pcs 18650 Battery Charging Box (Battery Not Included) Product Interface: Micro-Usb Interface Size: About 11.5 x 8.1 x 2.5cm Input Current/Voltage: DC 2A, DC 5V Output Current/Voltage: DC 1A/2A, DC5V Colour:white Material:ABS Package Contents: 1 x Battery Charging Case Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.