Product name: Handwriting dairy power bank
 Brand: iRock/OEM
 Model: IR-N4
 Material: PU Leather
 Power bank capacity: 4000/6000/8000/10000mAh
 Battery type: Li-polymer
 Storage memory: 8 Gb/16GB
 Screen type: handwriting 
 Screen size: 4.3 inches
 Function: Charging/note taking/video play
 Product dimension: 236*175*40mm
 Net weight: 600g
 Logo: iRock/Customized
 Colors: Blue/black/orange/customized