20100mAh External Battery Pack for Echo and Echo Plus with Extra Stability: With 20100mAh portable battery base, you could use your Echo away from the wall outlet, just unplugging the power cord and go. The Battery Base also adds extra stability to the Echo so that the Speaker doesn't get tipped over easily. Rubber pads at the bottom add additional protection and stability.
Multi-outputs(Max 25W) and Type C Input(5V/3A): Special micro USB cable(5V/1.8A) and optimal DC port(15V/1.4A) perfectly suit for Echo Dot and Echo Plus. The battery base is also a power bank that supports 5V/2.4A(Max) USB output and USB-C port (5V/3A Max), suitable for your cellphone, iPad etc. For charging the E2C power bank, just plug into the type c port.
Digi-Power and iM-Power II Technology: It shows exactly remaining power in digital format and automatically power your Echo by connecting to the top special micro usb connector and DC charging port or charge your other devices by connecting to USB, DC and type C ports.
High-quality LG Li-ion Battery and Multiple Smart Protection System: Quality guaranteed with build-in A-Class LG Li-ion battery makes your devices safe from over-charging, over-voltage, over-current and short circuit.