This isa refurbished 1200HAYES external 10 dip switch smartmodem model 6802US. It comes with the power supply and a phone patch cable. There are two phone jacks, one RS232 connector and a power connector on the back but no volume control. This is the modem most used by alarm installers to upload and download alarm panels. It is warranted for 36 days from invoice date. In the event of a failure we will repair, replace or refund at our option. Return shipping for repairs is to be paid by buyer. We accept paypal, money orders, or cashiers checks. We must receive full payment within 5 days from auctions end. We ship to united states and Canada only. (check the Canadian shipping charges listed in this auction)If sold in California 7.375% sales tax will be added to the final price.