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 quality 2. 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 imbalances 3. 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 amplification 4. 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 on 5. 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 Amplifier Phantom Power: +48V Gain Range: 19dB (Minimum)-75dB (Maximum) Frequency Response: 20Hz-50KHz (±0.05d) Signal to Noise Ratio (Gain=10): >100dBA Signal to Noise Ratio (Gain=1000): >87dBA THD (Gain=10): >0.0021% THD (Gain=1000): >0.0013% Dynamic Range (Gain=10): >100dB Dynamic Range (Gain=1000): >88dB Power Supply Voltage: USB 5V DC. Package List: 1 x Microphone Amplifier 2 x 6.35mm Audible Cable 1 x 3.5mm Audible Cable 2 x 3.5mm to 6.35mm Adapter 1 x USB Cable 1 x User Manual