DACport LX gives you an Ultra Low-noise, portable USB DAC, over 40 kHz audio bandwidth, 0.0018% THD, and true USB plug and play. No batteries are required. Most importantly, you can listen to true 24/96 HD content without the need to install any custom drivers - all these benefits are courtesy of CEntrance exclusive USB technology.
VideoSecu High Sensitive Preamp Mini Microphone with Power Bypass for Security Audio Sound Voice Monitoring Recording and Free Warning Decal WD4
This high gain mini preamp microphone is the best for CCTV professionals. Line level out put: 6-15 VDC. Power in and Power out design allows the microphone to share the same power source with the camera. Free warning decal is included. Notice: This item is VideoSecu brand. Please report to Amazon if you received one without VideoSecu logo.