Features:  • Add-on mini audio box for all cameras that require an audio function. • High sensitivity microphone (-65dB) with 45cm power/audio cable. • Easy to install and ideal for all security surveillance needs.  Technical Specifications:  • AUDIO OUTPUT: Max 2 V p-p • POWER SUPPLY: 12 VDC (+ / - 0.5V) • POWER CONSUMPTION: 10 mA • DIMENSIONS W x H x D mm.: 50x14x14 (Audio Box) • Weight g 35 • STORAGE TEMPERATURE: –30°C to +60°C • OPERATING TEMPERATURE: –10°C to +45°C