The Grandstream GDS3702 HD Audio IP Intercom System is an HD Audio IP Intercom System that offers remote facility access control for buildings of all sizes. The GDS3702 includes a built-in microphone and speaker to support intercom functionality, supports integration with electric locks for locking and unlocking doors, and offers alarm-in and alarm-out support for integration with existing security systems. Highlights: HD audio options with up to 1.5m of audio input and 3m of audio output Supports SIP calls to IP phones to facilitate communication Built with a metal casing to make it weatherproof and vandal resistant 2 Relay for Electric Lock and Alarm out, 2 Alarm In for Exit button and door sensor Integrated PoE to power the device and provide a network connection Built-in microphone and speaker offer voice options and an intercom functionality The GDS3702 works with Grand stream’s free management software, GDS Manager. It features SIP/VoIP technology with 2-way HD audio, IP66 level Weatherproof casing, and is vandal-resistant. The combination of the GDS3702, Grand stream’s IP Phones, Wave mobile app, and other 3rd party IP devices provide a complete end-to-end solution for access control and intercom needs. Tired of sitting all day but don't want to commit the money and space for a Standing Desk? Introducing the FitDesk Adjustable Height Desk. Big enough to give you a healthy alternative to inactive sitting, but compact enough to blend into your current workspace.Tired of sitting all day but don't want to commit the money and space for a Standing Desk? Introducing the FitDesk Adjustable Height Desk. Big enough to give you a healthy alternative to inactive sitting, but compact enough to blend into your current workspace. Specifications: Network: 10M/100M Auto-sensing Supply Voltage: 12VDC /1A (AC power adapter not included) SIP/VoIP Support: Yes, broad interoperability Voice Codecs: G.711μ/a, G.722, DTMF(RFC2833, SIP INFO), AEC, ANC Audio: Input Built-in microphones up to 1.5m Audio Output: HD loudspeaker 2W, up to 3m Input 2 Optocoupler Input, Vin