Speaker Apparatus in a Wireless Communication Device

摘要

In the invention there is being combined the back cavities of two speakers so that one speaker is used as a general speaker and the other one provides a boosting effect to the general speaker. For example, the other speaker can act as a subwoofer to the general speaker. The back cavity of the speaker is extended by a tubular cavity. The tubular cavity can extend to either the front or back panel of the mobile phone, thereby boosting the other speaker located at the respective panel.