Sensor: Optical Interface: USB Resolution: 1000 DPI Cable length: 1,5 m Number of Buttons: 3 Numbers of scroll: 1 Colour: Black and Red

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

Microphone Type: Unidirectional Sensitivity (headphone): 32 Ohms Sensitivity (headphone): 100 dB +/-3 dB Sensitivity (microphone): -58 dBV/µBar, -38 dBV/Pa +/- 4 dB Frequency response (Headset): 20 Hz - 20 KHz Frequency response (Microphone): 100 Hz - 16 KHz Weight: 0.074 kg Cable length: 2.35 m

Keyboard Spill-resistant design <span...

Sensor technology Optical...

Keyboard Adjustable keyboard height <span...

DPI: 200 - 12000 Sensor: Pixart PMW 3327 Color: Black Cable length: 1.8M Connectors: USB Weight: 79g

Keyboard layout: Standard Numeric keys: Yes Number of keys: 103 Interface: USB Cable length: 1,45 m Colour: Black