ip loudspeaker two way talkback

{"cid":"91187147","title":"GR-DS400T-1 WIFI TUYA Door Detector","imgUrl":"https:\/\/img.chinax.com\/nimg\/ca\/86\/7925328a2b14d4868fb45241496b-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"VANSHUI","Model Number":"GR-DS400T-1","Minimum Order Quantity":"1pcs","Certification":"CE,FCC","Place of Origin":"SHANGHAI,CHINA","Payment Terms":"T\/T, Western Union,Paypal","Supply Ability":"10000Pcs\/month","Packaging Details":"Box size: 235(L)*135(W)*105(H) Carton size: 540*485*290mm","Image Sensor":"1.3MP CMOS Sensor","Lens":"f=3.6mm, F=2.0","Angle":"70 degree","Audio Input\/Output":"Embedded Microphone and Loudspeaker","Audio Compression":"SPEEX (8KHz or 16KHz)","Network Wi-Fi":"WEP(40bit\/128bit),WPA(AES),WPA2(AES),OPEN","Wireless Alarm Input":"915MHZ\/FSK Two-way; Valid Distance\u226530M(open area); Max.32 channels","Linear Alarm Input&Output":"1*Alarm Input, 1*Alarm output","PIR Motion Detection Alarm":"igh Sensitivity, valid 6m distance, valid angle 60 degree","Alarm File Format":"JPG","Alarm Alert":"App push"}}