Cisco ATA 191, G.711Mu,G.711a,G.726,G.729A,G.729ab, T.38, UL 60950 Second Edition, CAN/CSA-C22.2 No. 60950 Second Edition, IEC 60950-1:2005 (Second Edition)..., CE Markings per directives 2014/30/EU and 2014/35/EU, SIP, TCP, UDP, RTP, HTTP, ARP,...
Rechargeable Battery Digital Audio Formats: MP3/WMA/AAC Clock, Alarm & Snooze Function 3.5mm Stereo Earphone Jack Output power:RMS 5 0W DC Operated with External AC/DC Adaptor LED Lights