Snom 300. Phonebook capacity: 100 entries. Supported network protocols: HTTP/HTTPS. Power consumption (typical): 1.7 W, Input voltage: 5 V. Dimensions (WxDxH): 200 x 185 x 120 mm, Weight: 0.73 kg. Safety: IEC 60950-1:2001, CB Test Certificate: DE 02011039, Certification: FCC Class B CE Mark