Smailwolf AK3 Headset Game Headphones Wired Luminous Desktop Computer Headset, Style: USB Single-plug 1. Frequency response range: 20-20KHz 2. Sound effects: 3.5 sound effects for dual-plug version, 7.1 channels for USB single-plug version 3. Microphone pickup mode: omnidirectional 4. Lighting effect: colorful dazzling light 5. Impedance: 20 ohms 6. Sensitivity: 103dB 7. Lead wire length: about 2m 8. Speaker: 50mm 9. Size: 22.1x19.1x10.3 cm 10. Weight: about 320g Features: 1. Cool colorful breathing light, shining cyclically 2. 50mm speaker unit, stereo effect, high resolution, louder volume 3. Skin-friendly big earmuffs fit the ears, comfortable and breathable 4. 360-degree omnidirectional microphone, free to adjust the microphone curvature, accurate reception, clearer voice 5. Suspended head beam, lightweight design, light and comfortable to wear 6. There is a volume wheel on the ear side, and the volume can be adjusted with one hand