You can connect two of the same Partybox models (e.g. 2 x Partybox 310, or 2 x Partybox 100) together in TWS Mode by pressing and holding the Bluetooth button on both speakers for 5 seconds, or by pressing the dedicated TWS buttons on the rear panels of both speakers on the Partybox 110, 310 and 710. It is possible to pair two different Partybox models together using a wired connection (e.g. 1 x Partybox 310 and 1 x Partybox 100). It is also possible to pair two Partybox different models wirelessly in Party mode, however this is only possible with the newer Partybox models - the Partybox 110, 310 and 710. The Partybox 200 & 300 can be paired in TWS mode as they are the same model apart from the presence of a battery in the Partybox 300. If you connect an instrument or microphone to one Partybox speaker while using TWS, the instrument or microphone connected to one speaker will be reproduced by this speaker alone. You will not hear the instrument or microphone in both speakers. If it is necessary to have instruments reproduced by two or more PartyBox speakers, it is possible to use an RCA or aux cable – connected from the RCA, aux or daisy chain outputs on the speaker that the instrument or microphone is connected to, wired to the RCA, aux or daisy chain input of the secondary speaker. Alternatively a small mixing console can be used - connecting audio sources to this mixer and sending the mixed audio signal to the speakers with a wired connection.