Exhibit 4.1 BRAVERMAN INTERNATIONAL, P.C. Certified Public Accountants 1255 McDonald Drive PRESCOTT, AZ 86303 CELL 602-881-3870 PHONE 928-771-1122, FAX 928-777-8378 hiluv007@aol.com April 23, 2005 Arshad Shah, President Wireless BillboardsTechnology, Inc. Vancouver BC Canada Dear Arshad: This is to confirm that the client-auditor relationship between Wireless BillboardsTechnology, Inc. (Commission File Number 0-32313) and Braverman International, P.C., has ceased. Sincerely, Ivan Braverman, President Braverman International, P.C. CC: Office of the Chief Accountant SECPS Letter File Securities and Exchange Commission Mail Stop 9-5 450 Fifth Street, N.W. Washington, D.C. 20549 Fax no. 202-942-9656