Bandwidth: 300 Hz ... 13 kHz ; Sound pressure level: 121 dB SPL ; Speaker directivity: 70 ° horizontal 100 ° vertical ; Gain adjustment; "Index of Protection": IP67 ; Main features: Microphone built-in Sensitivity adjustment Bi-directional audio streaming support ; Power supply: PoE (802.3at) ; Power output: 12 V DC ;