Sensor: Optical Communication: Wireless 2.4Ghz Interface: USB Resolution: 800 / 1200 / 1600 DPI Reception: 10m Number of buttons: 3pcs + DPI

Sensor: Optical Interface: Wireless 2.4Ghz Resolution: 1000/1600 DPI Numbers of buttons: 5 Numbers of scroll: 1 Colour: Grey

Keyboard - Key Layout: Standard (QWERTY) Keyboard - Multimedia Keys: Yes (after pressing Fn) Keyboard - Numeric Keys: Yes Keyboard - Built-in USB HUB: NO Keyboard - Short keystroke: Yes Keyboard – Backlight: NO Keyboard - Number of keys: 104 Keyboard - Communication with computer: 2.4GHz Wireless Keyboard – Interface: USB ...

Cable length (m): 1.2 Connector: Minijack (3.5mm) Call answer button: Yes Microphone: Yes Frequency response: 20Hz-20kHz Headphone performance: 103 ±3 dB Color: Black and Blue