Welcome to ibbi Store. You can call everybody with it. No external power supply, no battery, directly with the telephone line current work. No external power supply, no batteries, direct current operation with telephone line. Retro ringing tones (sweet jingle bell sound). Custom Charge is yours. Any item on customer’s specification, will take some extra time to customize the item as per customer requirement. We provide 12-months free maintenance. Before returning the items, please confirm the return address and the logistics method with us. We do our best to serve our customers the best that we can. We will try our utmost to resolve the issue to our mutual satisfaction.