1、XLR/6.35mm Audio Audio Adapter: Simply plug a 6.35mm audio connector (a guitar or other instrument) or a microphone XLR connector into the LINKFLEX AD2, then connect it to your device with a 3.5mm output cable. 2、Universal for camera and smartphone with 3.5mm output jack. 3、Support 48V Phantom Power Output: It can provide power for the microphone that supports 48V phantom power input to avoid the interruption of recording due to low power. 4、Audio Preamp and Gain Control: The provided gain-control knob is easy to adjust the gain of the audio input. Processed sound can be monitored through a 3.5mm headphone output. 5、Mic/Phone Two Way Audio Monitor: Real-time monitor; Playback monitor. Blet-clamp and fastener tape design at the bottom. COMICA LinkFlex AD2 XLR /6.35mm-3.5mm Microphone Preamp  Audio Adapter with Phantom Power Preamp Amplifier is compatible with iOS/ Android Smartphones, mainstream DSLR cameras and guitar. Features: XLR/6.35mm Audio Audio Adapter: Simply plug a 6.35mm audio connector (a guitar or other instrument) or a microphone XLR connector into the LINKFLEX AD2, then connect it to your device with a 3.5mm output cable. Universal for camera and smartphone with 3.5mm output jack. Support 48V Phantom Power Output: It can provide power for the microphone that supports 48V phantom power input to avoid the interruption of recording due to low power. Audio Preamp and Gain Control: The provided gain-control knob is easy to adjust the gain of the audio input. Processed sound can be monitored through a 3.5mm headphone output. Mic/Phone Two Way Audio Monitor: Real-time monitor; Playback monitor. Blet-clamp and fastener tape design at the bottom. Specifications: Brand: CoMica Model: LinkFlex AD2 Input: XLR, 6.35mm Output: 3.5mm audio output, 3.5mm headphone output Frequency Response: 20Hz-20kHz, ±1dB Gain Range: Maximum increase +20dB THD+Noise: Less than 0.02%, RL=2K Ohms, f=20Hz~20kHz, Vo=1Vrms Compatible Battery: 1 * 9V 6LR61/6F22 battery (Not included) Operating Temperature: 0℃~+50℃ Storage Temperature: -20℃~+60℃ Item Size: 10.2 * 5.3 * 4.3cm / 4 * 2.1 * 1.7inch Item Weight: 109g / 3.8oz Package Size: 15.2 * 11.5 * 8cm / 6 * 4.5 * 3.1inch Package Weight: 200g / 7.1oz Packing List: 1 * CoMica LinkFlex AD2 Microphone Preamp Amplifier 1 * CoMica LinkFlex AD2 Microphone Preamp Amplifier