30w built in amplifier hazardous area telephone

{"cid":"91210763","title":"Aluminium Alloy Enclosure Strong Noise Canceling 30W Built-in Amplifier Explosion Proof Telephone for Hazardous Areas","imgUrl":"https:\/\/img.chinax.com\/nimg\/7a\/89\/254c344a2ef4b390497f99fc9d18-200x200-1.jpg","attrs":{"Price":"499","Minimum Order Quantity":"2","Model NO.":"YT-IPSG","Hardware Technology":"Board","Type":"IP - SIP or Analog","Exclusive Tech":"Strong Noise Canceling - Optional","Enclosure Material":"Aluminium Alloy - Thickness 10mm","Handset Material":"PC+ABS","Keypad Material":"Silicone\/Stainless Steel","Built-in Amplifier":"30W","Buzzer Power":"3W - Over 90 dB in One Meter","Power Supply":"Poe\/Gateway\/External Power Supply","Protection Grade":"IP67","Rated Voltage":"DC 12V\/AC 220V","Operating Temperature":"-40\u2103 ~ +70\u2103","Installation Type":"Wall-Mounted\/Pole-Mounting","Accessories":"Mounting Plate"}}