Wireless Numeric Keyboards with USB Hub

wireless numeric keyboards description

mechanical function:
switch travel: 2.4+/-0.2mm
keystroke life: 10million times
key switch elasticity: 50+/-7g

power requirement:
working voltage:5.0+/-0.25vdc
working current: less than 30ma
power: less than 0.5 wt

environment and temperature:
working temperature: 0·c~50·c
working humidity: none condensation under 20% ~90% humidity

specification:
product dimension: l142mm*w90mm*h20mm
key layout: 19/ 18/17 keys are available
product net weight: 133g

description:
numeric keyboards
independently developed ic can be used with laptop computer or keyboard at same time, and will not interfere each other
with 2 standard usb1.1 cables, can receive any usb equipment
use anguo usb hub & ic, stable function and reliable quality
small very good looking and convenient to carry
use 5 pins mini usb cable, pilot wire convenient for usage

products compatibility:
support windows 98 /2000/ me/ nt/ xp/vista system
support all languages versions, compatible ibm pc/ps2/at/usb/u+p

packing :
blister card size: 230*125*26mm
carton size: l530mm*w370mm*h205mm
packing method: blister and insert card, 40pcs/ ctn. two layers