No external power supply, no battery, the direct use of telephone line current work. Suitable for placement: suitable for home, office, luxury, star hotels, galleries, jewelry firms to improve the grade and taste. The item "Vintage Antique European Style Old Fashioned Rotary Dial Phone Handset Telephone" is in sale since Tuesday, June 2, 2020.This item is in the category "Collectibles\Radio, Phonograph, TV, Phone\Telephones\1970-Now". The seller is "kwotop2014" and is located in Shenzhen. This item can be shipped worldwide.