audio-technica AT-MA2 The volume can be increased. Purchased new and used for about a month, then switched to other equipment and hadn't been used for a long time, so it's unknown if it works. Brand: Audio Technica Model Name: AT-MA2 Connectivity: AUX Connector Type: 3.5mm jack, 6.3mm jack Features: Noise Reduction Allows microphone recording and amplification with AV equipment that doesn't have a microphone terminal. Can switch between mono/stereo microphones to match the microphone. Supports plug-in power. Metal body & compact size. AC adapter included.