-Sound 7.1 Surround -Speaker size 40mm -Speaker sensitivity 110dB±3dB -Speaker impedance (32±15%)Ω -Frequency response 20Hz~20KHz -Microphone type omnidirectional -Microphone size Φ6*2.7mm -Microphone sensitivity -42dB±3dB -Backlight RGB -Cable length 2.2m (Detachable) -Weight 220g -Color White -Rated Power 30mW