Rf Wireless Power Office Kybd &optical Mouse Combo 47 Hot Keys Black and Silver, 27 MHz RF Technology, 256 Security ID Codes Omni-directional operation with 5 foot range Power Office PS/2 Keyboard w/ 47 Hot Keys (12 Programmable Hot Keys) Optical mouse provides excellent precision on most any flat,non-reflective surface Instant access to Office, Internet, Multimedia and Application Functions, Unique Scroll Wheel and Volume Knob