SPECIFICATION SPEAKER Loudhailer diameter: 40 mm Sensitivity: 93 ± 3 dB at 1 kHz Frequency response: 20 ~ 20,000 Hz Impedance: 32 Ω at 1 kHz Handling power capacity: 15 mW
MICROPHONE Mic sensitivity: -30 ± 3 dB at 1 kHz Mic frequency response: 50 - 10 kHz Mic impedance: ≤ 2.2 KΩ at 1 kHz Mic directivity: omnidirectional Cable length: 2.2 m/ 7.22 ft Input Plug: Gold-plated USB Plug