Peace be upon you. We have all modern sound systems available. We specialize in installing sound systems for small mosques within neighborhoods. We have a 2-channel amplifier. The first channel is for internal sound, with volume control. The other is for external sound. The purpose of this control is to adjust the external sound volume so that more people can hear the call to prayer. Regarding the internal sound, the volume is reduced to a suitable level for the place to avoid whistling and noise. We also install a switch to disconnect the external sound during loud prayers. Sound engineer: ( Phone number appears when clicking the contact button )