Philips SHM3400 PC Headset. Device connectivity: Wired, Device interface: 2x 3.5 mm, Cable length: 3 m. Ear coupling: supraaural, Acoustic system: semi-open, Headphone frequency: 20 - 20000 Hz. Microphone frequency: 50 - 15000 Hz, Microphone sensitivity: -42 dB. Weight: 79 g. Package dimensions (WxDxH): 197 x 56 x 248 mm, Package weight: 0.202 kg