The HuddleCamHD HuddlePod Air2 Duo is a 2.4 GHz wireless audio conferencing speakerphone system designed to work with any UAC compatible software. It includes two speakerphones that are compatible with Windows, Mac, or Android, and a USB transceiver antenna.The HuddlePod Air2 features built-in automatic DSP and EQ: 256-channel acoustic echo cancellation that provides noise cancellation for up to 16 dB and also provides auto level control. The speakerphone also features a 3.5mm audio output jack, which allows you to connect a headphone or an external amplification system if desired. These 360° omnidirectional pickup speaker set comes with a neoprene travel case, USB charging cables, and the internal batteries can power each unit for up to 9 hours on a charge.