full duplex handset loud speaking telephone

{"cid":"91210763","title":"Protective Front Cover Loud Speaking Telephone Full Duplex Talk On Handset","imgUrl":"https:\/\/img.ismap.com\/nimg\/96\/30\/b509911eaaf36773c2784573a4c1-200x200-1.jpg","attrs":{"Price":"Negotiate","Brand Name":"Yuantong","Model Number":"YT-IPSG30","Minimum Order Quantity":"1","Delivery Time":"15-25 days","Place of Origin":"China","Certification":"CE FCC ROHS ISO9001:2015","Packaging Details":"Carton","Supply Ability":"1000 pcs per month","Built-in power amplifier for broadcast":"30W Optional","Turn on time":"Less Than 3s","Working temperature":"-30\u2103~+70\u2103","Product Model":"YT-IPSG30","Power Supply Mode":"DC12V Adapter External","Connection Protocol":"Support SIP","Perimeter Out":"Can Call The Monitoring Center 119 110","Explosive-proof Grade":"None","Payment Terms":"T\/T"}}

{"cid":"91183860","title":"SOS Robust Broadcasting Industrial Weatherproof Telephone Loud Speaking IP66-IP67","imgUrl":"https:\/\/img.ismap.com\/nimg\/b9\/fb\/f508b9c5b6ce6eb793e74c827d26-200x200-1.jpg","attrs":{"Price":"Reconsideration","Brand Name":"J&R","Model Number":"JR101-FK-HB","Minimum Order Quantity":"1","Delivery Time":"3-5 working days","Certification":"CE, FCC, RoHS, ISO9001","Place of Origin":"Shenzhen, China","Payment Terms":"L\/C, T\/T","Supply Ability":"3000 sets per month","Packaging Details":"Unit size: 339*246*126 (mm) Carton size: 200*300*440 (mm ) Packaging materials: Pearl cotton, Carton Net weight: 6.2KG Gross weight: 7KG","Product name":"Robust Broadcasting Industrial Weatherproof Loud Speaking Telephone","Material":"Aluminum alloy","Function":"SOS","Main chip":"Audiocodec","Package":"Pearl Cotton, Carton","Modle":"Analog\/ SIP\/ GSM\/ 3G","Mounting":"Wall \/Pillar Mounted","Ingress Protection Rating":"IP66-IP67","Full Keypad":"Yes","Door Cover":"Optional","Temperature":"-30\u00b0C to +65\u00b0C","OEM":"Yes","Warranty":"2 Years","Feature1":"Anti Vandal","Feature2":"Horn and Beacon"}}