Is it permissible to listen to the Qur'an and the Khutbah from the radio?

A 2: Among the conditions of the validity of the Jumu`ah (Friday) Prayer is to be preceded by two Khutbahs. They should be delivered orally and it is insufficient to listen to them from a cassette player. As for the reciter, the Imam is enough if he recites the Qur'an properly in the Prayer. (Part No. 7; Page No. 116) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.