Specifications include, but are not limited to: The work to be performed by the On-Call Public Address Systems Repairs and Replacement Services Contractor under these Specifications shall consist of furnishing all material, labor, supervision, tools, supplies and other expenses necessary to fulfill all the related work orders issued by the New Haven Public Schools, Facilities Department, including but not limited to the following; The contractor to have qualified installers/workers to work on all parts of Public Address systems including but not limited to Annunciators, microphones, speakers, electric door strikes, button buzzers, wiring and any other related work to Public Address systems. The contractor must also be capable of doing any electrical work related to repairing the Public Address systems b. It is the Contractor’s responsibility to bring the necessary labor, tools, materials, etc., to the work location. The Contractor must have all the tools necessary to perform its trade daily. The security and protection of all materials, tools and equipment stored at any work location are the sole responsibility of the Contractor. c. Only items listed on the BID TABLE may be invoiced. Appropriate line items relating to equipment shall be stated by the Contractor in the BID TABLE. If the price is not filled in, in the appropriate line item on the BID TABLE, it will not be eligible for compensation. No specialized equipment may be billed without the expressed prior authorization of the Facilities Department.