VIKING LDB-1 Loop Detect Board Phone line powered Excellent line balance Optional PS-2 power supply for switched power Features: Ringers and Speakers : Yes Dimensions (LxWxH) : 2 inches x 1 inch x 0.
25 inches Weight : 0.
3 lbs Energy Star Qualified : No Recycled Packaging : No Country of Origin : USA (provided by manufacturer, not verified) RoHS Compliant : Yes Type of Packaging : Plastic Bag Warranty : 2 year