Is a woman permitted to own a mobile phone or use online chat rooms without her husband's permission?

A woman may acquire a mobile phone without her husband's permission, as long as it does not cause him harm, infringe upon his rights, or corrupt her religiosity and character. She has full legal capacity to dispose of her own wealth and own what is permissible by Islamic law. However, she should consult him to appease him, and if he forbids it, it is better for her to obey his command. As for entering chat rooms, a woman may only speak with other women for a permissible purpose, while adhering to Islamic guidelines. It is better to avoid it altogether to stay away from potential corruption.