FREEDOM FOR THE HANDS: No more pain from jamming the handset between your head and shoulder. More well-being and pleasant wearing comfort through a headset lead to more motivation. IMMEDIATELY READY FOR USE: Interchangeable connection cable to the phone is already included | Simply connect it yourself and get started | with instructions | 24-month manufacturer warranty. EXPERTS: Benefit from our own development and support from the manufacturer. GEQUDIO is a company from Berlin. For questions we are available for you. COMPATIBLE MODELS can be found in the description.