IP Telephone SIP Network Language Telephone Customer Service VOIP Landline With Backlight Led ScreenSPECIFICATIONS Brand Name: ZJMZYM Hign concerned Chemical: None Model Number: Telephone Origin: Mainland China Product Number: LG1609 Type: Phones Wire Type: Corded Package includes: 1 set of Telephone The product will be upgraded constantly, the appearance and color may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Insert 5V at both ends Keys: External 22 keys Screen : 2. 3