Audio handset; Ethernet 10/100; power: +12 V DC or PoE 802.3af; The standard distance when talking is 40-60 cm, but can vary from a few cm to 1 m; IP40; humidity 20%-93%; speaker Power - 2 Watts; DND button; concierge button; LED assistance during actions; ability to connect doorbell; wall mount
 
Visit this link for datasheets and more: https://bas-ip.com/downloads/all/5336/