The device consisted of a round cell battery and a PCB with a micro-USB port which was exposed (the device was not water-resistant).

An EVA-based glue was used to hold the USB-port and the battery solder in place. This could also help reduce liquid damage if the device was exposed to a liquid spill.

The device uses a Crazell 3.6V LIR3048 Lipo cell (180mAh; 30mm diameter and 4.9mm thickness)