Approval and Binding Agreement. Buyer has approved, by all necessary and appropriate corporate action, the execution, delivery and performance of this Agreement and consummation of the Transactions, and has authorized its officers to take all action and to execute, acknowledge and deliver all documents appropriate to consummate the Transactions. No other approvals for the Transactions or the Agreement must be obtained which have not been obtained. This Agreement constitutes the legal, valid and binding obligation of Buyer, enforceable in accordance with its terms (subject as to enforcement of remedies to the discretion of courts in awarding equitable relief and to applicable bankruptcy, reorganization, insolvency, moratorium and similar laws affecting the rights of creditors generally). Page 4 of 13 Exhibit 10.13 Purchase Agreement between Eagle Broadband, Inc., Subsidiary Contact Wireless, Inc., and eRF, Inc.