Specifications:<br> Item type: wired number keypad<br> Material: ABS<br> Color: black<br> Interface: USB interface<br> Cable length: 1.46m/57.38inch  <br> Number of keys: 19 keys<br> Working voltage: 4.5V-5.5V<br> Light: three colors (red, blue, purple)<br> Item size: 16*11*2cm/6.29*4.32*0.79inch(L*W*H)<br> Weight: 196g/6.91oz<br> <br> Package Including<br> 1*wired number keypad<br> 1*package box