The Quattro2 Daisy Chain (MT304) comes with a USB connection for your PC or MAC computer and a Daisy chain connection to link to other Quattro2's. The MT304 is meant to be used as the slave unit in a chain of Quattro2's but can be used as a standalone USB conference phone like any other Quattro2.The USB is designed for Voice or Video over IP (VoIP) or can be used for playback of your computers media player or for recording a meeting. TheQuattro2 Daisy Chain is supplied with 3 cables: USB to USB - to connect with your computer. 11' Daisy Chain cable - For connecting to other Quattro2s. Power supply - You can power the Quattro2 from your computer via the USB connection or with the included power supply with international clips. The first Quattro2 in the chain can power one Quattro2 Daisy Chain unit. Any unit beyond the second would need to run off of its included rechargeable batteries or use its included power supply. Control - You can control all Quattro2's from any unit in the chainExpandable - All Quattro2's are expandable in an unlimited chain. The first unit in the chain would be the Quattro2 that has the connectivity you want. The 2nd, 3rd, 5th, 10th, etc. unit in the string would be a Quattro2 - Daisy Chain unit (MT304)Speaker Out - The speaker out jack allows for use with external amplifier and speaker(s).

• The USB is designed for Voice or Video over IP (VoIP) or can be used for playback of your computers media player or for recording a meeting.
• comes with a USB connection for your PC or MAC computer and a Daisy chain connection to link to other Quattro2's.
• All Quattro2's are expandable in an unlimited chain.

The USB is designed for Voice or Video over IP (VoIP) or can be used for playback of your computers media player or for recording a meeting.Pheonix Audio