Color classification: black blue black green Plug diameter: 3.5mm Headphone output source: portable audio and video Connection method: wired connection headset and playback device Connection method: wired connectionDriver: 40mm diameter
Specifications:
Impedance: 15% 32 ohm ± Sensitivity: 105db + / - 3dB 1kHz Frequency range: 15hz-20khz Size: 6 × 5.0mm MIC Microphone sensitivity: -38 dB + / - 3dB Microphone impedance: 2.2kohm Directionality: all-round Cable length: about 0.15 2.1m ± LED operating voltage: DC5V ± 5% Working current: 100ma below. Headphone jack: 3.5mm (4pin) + USB (USB LED light) Headphone size: approx.95 * 215 * 3.7 * 8.5 * 8.1in 205mm Packing size: 213 × 200 × 105 mm / 8.4 × 7.9 × 4.1 in Package contents: 1 * GM-1 headphones