Zycoo iSpeaker C20

Telephony Protocol SIP 2.0iRFC3261j
-Support G.711,G.722,G.723,G.726,G.729 audio codecs;
-Support SIP2.0 (RFC3261)and related RFC protocol;
-Support Power over Ethernet(PoE);
-The DSP integrated echo cancellation and noise suppression can provide excellent voice;
-Easy management and configuration from Web interface;
-Support encrypted communication;
-Online update of software.
-Speaker Output 3.5W
-Speaker Impedance 4Ohm
-Headset 3.5mm standard input/output interface