Power Modes: Allow you to use your power bank, USB wall charger or other USB power source for charging. NOTE: Please make sure the output is 5V 2A or above. Long lasting power supply for indoor or outdoor shooting. Multiple safety protection: Built-in protection system to protect it from overcurrent, overvoltage and short circuit. PS: Only the dummy battery, not other products Special Note!!! The camera for ZV1 does not reserve a cable hole, which makes the dummy battery cover to be installed cannot be completely covered, but it can be used normally. Color: Black Material: ABS Package Contents: 2 * Dummy Battery Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.