External power supply External power supply is different depends on model, please check before purchase. Overseas sales dept: +82-1644-3526Domestic sales dept: +82-1644-3526 +82-1644-3526 Related Products Number stickerNumber sticker to attach on digital key Mould Ass’yMould ass’y is the parts for online power type or network… Band(Urethane A)Urethane band