GEST is a Seven - Star Service Call System designed for exclusive and luxurious locations, fitting into the finest interiors. Additionally, our Service Call System works with two - way communication. For instance, when a call is placed by the client, the crew can accept it, turning the GEST’ LED lights green. In this way, the client knows that the crew is on their way and that the call is successfully completed. Finally, GEST works on Wi - Fi (2.4gHz) and is exceptionally reliable in combination with our local server. This can either be hosted virtually or on a small Intell NUC that we supply. If you wish to receive a more detailed quotation, with extra customizations (such as a different GEST finish or multi - touch lens, please get in touch with us). We are happy to help. The GEST System requires the following items: GEST Buttons, GEST Chargers, GEST Physical Server and GEST Yearly License. This package includes GEST Buttons and GEST Chargers. Therefore, please revert to the GEST License and Server item to complete the purchase. GEST Universe Button - €1.499, - GEST Charger - €150, -