Microphone Amplifier Volume Adjustment Real-time Monitor Functions with Monitor Earphone 3.5mm to 6.5mm Audio Adapter

Features: The item can adjust the volume level of your microphone(3.5mm audio plug), and can real-time monitor the input sound from microphone. Powered by 1pc 1.5V AAA alkaline dry battery (not included). Adopt the low power circuit design, making its runtime up to 10-15 hours. Adopt the low noise circuit design, 16-level electronic volume control, long-lasting and durable in use. Built-in phone/camera microphone system switching circuit, compatible with multiple video/ sound recording devices. Use superior 3.5mm nut interface socket, ensuring reliable connection. Specifications: Model: EY-580S Gain: -18dB~+12dB (audio line output); -5dB~+25dB (earphone monitoring output) Frequency Response: 20Hz~20KHz SNR (Signal to Noise Ratio): ＞92d Degree of Distortion: ＜0.5% Power: 105mW(earphone monitoring output) Volume Adjustment: 16-level (each level 2dB) Working Voltage: DC 1.5V Working Current: 30mA (static state) Cable Length : Approx. 1 meter Item Size: 8 3.3 1.5cm / 3.1 1.3 0.6inch Net Weight: 49g / 1.7oz Package Size: 17 10 4.5cm / 6.7 3.9 1.8inch Package Weight: 140g / 4.9oz Packing List: 1 Microphone Amplifier 1 Monitor Earphone 1 3.5mm to 6.5mm Audio Adapter 1 Carrying Case Note: AAA battery is not included.