Feature:1. Microphone Amplifier: Designed for 99% of large diaphragm 48V condenser microphones on the market, this microphone amplifier boasts high stability and balance, ensuring well output quality2. 2 Channel Input Output: This amplifier supports double input and output, compatible with dynamic microphones, condenser microphones, guitars, and more, easily resolving volume and sensitivity imbalances3. Lossless Amplification: With a distortion rate extremely low and a restoration rate of 99.78%, this microphone amplifier enhances sound while preserving audible quality, ensuring lossless amplification4. Device Compatibility: Suitable a variety of devices, input supports capacitive mic, phone mic, wireless mic, musical instruments, outputs support computer, sound card, mixing console, stereo, headphone and so on5. BT Accompaniment: This amplifier allows for connection to BT enabled devices for playing accompaniment (blinking indicates that the device is not connected to the BT, while a steady light confirms a successful BT connection)Specification:Item Type: Microphone AmplifierPhantom Power: +48VGain Range: 19dB (Minimum)-75dB (Maximum)Frequency Response: 20Hz-50KHz (±0.05d)Signal to Noise Ratio (Gain=10): >100dBASignal to Noise Ratio (Gain=1000): >87dBATHD (Gain=10): >0.0021%THD (Gain=1000): >0.0013%Dynamic Range (Gain=10): >100dBDynamic Range (Gain=1000): >88dBPower Supply Voltage: USB 5V DC.Package List:1 x Microphone Amplifier2 x 6.35mm Audible Cable1 x 3.5mm Audible Cable2 x 3.5mm to 6.35mm Adapter1 x USB Cable1 x User Manual