A method for separately transferring multiple media streams to different devices used by one user of a conference system comprising a conference system server, wherein each media stream of the multiple media streams relates to the conference and is sent to the conference system server by a different conference attendee, the method comprising: acquiring, by a browser of a first device used by the user of the conference system, information about at least two second devices used by the user that may each be configured to present a media stream; indicating, by the browser of the first device, to the conference system server, that the user is a multi-device user; receiving, by the browser of the first device, the multiple media streams from the conference system server in the form of separate media streams that have not been mixed by the conference system server; temporarily saving, by the browser of the first device, each media stream of the multiple media streams received from the conference system server; marking, by the browser of the first device, each media stream temporarily saved by the browser of the first device, wherein the marking comprises assigning an identifier to each media stream temporarily saved by the browser of the first device; and when it is determined that a media stream selected from the marked media streams is to be transferred to a selected one of the at least two second devices used by the user for presentation, sending, by the browser of the first device, a link of the selected media stream to the selected one of the at least two second devices, so that the selected one of the at least two second devices acquires and plays, according to the link, the media stream corresponding to the link, wherein the selected one of the at least two second devices is selected according to the information about the at least two second devices. acquiring, by a browser of a first device used by the user of the conference system, information about at least two second devices used by the user that may each be configured to present a media stream; indicating, by the browser of the first device, to the conference system server, that the user is a multi-device user; receiving, by the browser of the first device, the multiple media streams from the conference system server in the form of separate media streams that have not been mixed by the conference system server; temporarily saving, by the browser of the first device, each media stream of the multiple media streams received from the conference system server; marking, by the browser of the first device, each media stream temporarily saved by the browser of the first device, wherein the marking comprises assigning an identifier to each media stream temporarily saved by the browser of the first device; and when it is determined that a media stream selected from the marked media streams is to be transferred to a selected one of the at least two second devices used by the user for presentation, sending, by the browser of the first device, a link of the selected media stream to the selected one of the at least two second devices, so that the selected one of the at least two second devices acquires and plays, according to the link, the media stream corresponding to the link, wherein the selected one of the at least two second devices is selected according to the information about the at least two second devices.