Product Description » 1, Wireless keyboard with 3D optical mouse 2, 104 keys + 15hot keys 3, RF: 27Mhz and 1.0-1.5M operation distance 4, USB port for receiver 5, Multiple language versions available 6, Use life: Over 10million times 7, High quality membrane tactile key switch 8, 1 channel 256 ID to avoid interference 9, Wireless keyboard with receiver, no mouse or wired keyboard available 10, Compatible with Windows 98/2000/NT/ME/XP/Vista 11, 15 hot keys: Website, email, search, favorite, refresh, my computer, volume up, volume down, mute, play/pause, stop, previous, next, power