Interface:                 USB 2.0

Wireless or Wired:   2.4G Wireless

Compatible Brand: APPLE , IBM , Asus , Thinkpad , Huawei , Google , Dell , HP , Toshiba , Acer , Lenovo , Samsung , MSI ,  Sony

Back-lit:                   Yes

Operation Distance:10m

Powered By:            AAA Battery

Battery included or not: No