Today we would like to introduce our Signal Jammer DZ-101M. *Specification: 1)Power Supply: AC adapter (AC220V-DC5V) 2)Total output power: 900mW 3)RF output power each band : 300mW 4)Built-in battery :1500mA/h 5)Net weight:250g 6)Dimension:(L*W*H)95*45*18mm Welcome to contact us to know more details and thanks for your business opportunity. Daisy Zhan Sales Manager 86-139-2378 5451