to noise ratio: >52dB High definition video interface: USB2.0 interface (B-port mother base of U3), High-Definition Multimedia Interface 1.4 Network interface: for upgrading and maintenance Audio interface: Reservation HD USB interface: USB2.0 interface (USB2.0 input, can be connected to standard low bandwidth USB devices such as mouse, keyboard, omnidirectional microphone, etc., cannot be connected to a camera) Control signal interface: 8-core mini DIN(RS232), 3.81 seat (RS485) Control signal format: Start bit: 1 bit, data bit: 8 bits, stop bit: 1 bit, baud rate: 9600/4800bps Power interface: HEC3800 power socket Support operating systems: Compatible with Windows 7 / Windows 10 USB Protocol: UVC1.1 Mechanical performance: Horizontal rotation: ± 170 degrees; Pitch rotation: -30 degrees to '90 degrees Horizontal control speed: 1-100 °/second; Pitch control speed: 1-60 °/second Preset speed: Horizontal: 100 °/s, pitch: 60 °/s Preset accuracy: 0.5 degrees Number of preset positions: 255 users can set preset positions Color: Black Power adapter: AC110V-AC220V to DC12V/2A Input voltage: DC12V (DC11.5-DC12.5V) Power consumption: 10W (maximum) Storage temperature: -10 ℃ to '60 ℃ Working temperature: 0 ℃ to '45 ℃ Usage environment: Indoor Dimensions (width x height x depth): 175 x 173 x 150mm / 6.88 x 6.81 x 5.9in Weight (net weight): 1.3kg / 2.86lb Control protocol: VISCA, PELCO-D/P Installation method: Wall mount, hanging mount, tripod mount Image flipping: Supports vertical flipping Product material: ABS plastic Plug type: US plug, EU plug, UK plug, AU plug (Optional) Packing List: 1 x Conference Camera 1 x Power Supply 1 x UK Plug Cable 1 x Remote Control 1 x USB Cable 1 x Manual 1 x Wall Mounted Holder 1set x Screws