Model Number: HYH-G3i8
2.4G wireless trackball keyboard: yes
With GYRO & G-sensor technology: used in-airnavigation and cursor control
Application workable: desktop,laptop,Tablet PC,Google TV,IPTV,Smart TV
Long range RF technology t: up to 10 M
can work through walls.: yes
size: 200*61*25mm
color: black
bettery : dry cell