Connects cellphones to the Konftel 300/300W conference phones to provide conferencing capabilities for calls on the cellphoneThe Konftel 900103390 is compatible with the following cell phones:Nokia - 7500 prismNokia - N78Nokia - N81Nokia - N82Nokia - N95Nokia - N76Nokia - N82Nokia - N96Nokia - E75Nokia - E52Nokia - N85Nokia - N97Nokia - 5800 Xpress musicNokia - 2730 classicNokia - E72Nokia - N900Nokia - N52Nokia - C5Nokia - C7Nokia - E5Nokia - E7Nokia - 6303 classicNokia - X3-02 Touch and TypeNokia - C3-01Nokia - 1616Nokia - N8Nokia - ModellNokia - N9Samsung - Galaxy Spica I5700Samsung - i7110Samsung - Jet S8000Samsung - M5650Samsung - Omnia IISamsung - Omnia HDSamsung - Omnia ProSamsung - S5620 MonteSamsung - Galaxy S1Sony - Xperia Acro SSonyEricsson - Xperia Arc SSonyEricsson - Xperia ArcSonyEricsson - AspenSonyEricsson - CedarSonyEricsson - SpiroSonyEricsson - W995SonyEricsson - Xperia X1SonyEricsson - Xperia X2SonyEricsson - Xperia X8SonyEricsson - Xperia X10SonyEricsson - Xperia X10 miniSonyEricsson - Xperia X10 mini pro