Headphone type: On-ear Number of channels: 7.1 Cable length: 2 m Connector: USB 2.0 Volume control: Yes Microphone: Yes Microphone sensitivity: -38±3dB Frequency response: 20Hz - 20kHz Headphone effectiveness: 117±3dB Impedance: 32Ω Color: Black Weight: 340 g

Headphone type: On-ear Cable length: 2 m Connector: 2x mini jack (3.5 mm), USB Volume control: Yes Microphone: Yes Microphone sensitivity: -42±3dB Frequency response: 20Hz - 20kHz Headphone effectiveness: 108±3dB Impedance: 32Ω Color: Black and Red Weight: 345g

Keyboard Layout: QWERTY Multimedia Keys: Yes (with Fn button) Numeric Keys: Yes Number of Keys: 104 Mouse - Keyboard Interface: USB Mouse - keyboard Cable Length: 1.6 m Mouse - Keyboard Colour: Black Mouse sensor: Optical Mouse Resolution: 800 DPI Mouse - Number of Buttons: 3

Keyboard Layout: QWERTY Multimedia Keys: Yes (with Fn button) Numeric Keys: Yes Number of Keys: 104 Mouse - Keyboard Interface: USB Mouse - keyboard Cable Length: 1.5 m Mouse - Keyboard Colour: Black Mouse sensor: Optical Mouse Resolution: 400 / 1600 DPI Mouse - Number of Buttons: 3

Type of speaker: 2.0 Power output (RMS): 2 x 5W Frequency response: 20Hz-20000Hz Magnetic shielding: Yes Headphone output: NO Power supply: 240V Built-in power supply Pilot: Lack Color: Black Speaker dimensions (height/depth): 147x95x74mm

Type: Headphones Volume control: Yes Frequency response: 20Hz-30 KHz Microphone: Yes (Omnidirectional) Cable length: 2m +/- 10% Plug type:  1x mini Jack (3,5 mm) Color: Black

Sensor: Laser Interface: USB Resolution: 800 / 1600 DPI Cable length: 1,75 m Number of buttons: 3 Number of scroll: 1 Colour: Black

Interface: USB Resolution: 1000 DPI Cable length: 1,5 m Number of buttons: 3

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