Two Way GSM Communicators RT-2WC-D31 — Technical Datasheet Squadron 2way GSM communicator units are deployed in remote location like atm, banks, shops, home etc., to make a 2way communication from authenticated numbers only. Features - GSM-based 2-way voice communication units with an inbuilt speaker and microphone. - 8 Ohms speaker. - Highly sensitive microphone. - User details storage capability. - Power 12VDC, 2A. - Auto calls receiver capability. - User authentication and security are ensured. - SMPS output voltage -12VDC /6 Amps. - User Configuration through SMS. - One ADMIN and a maximum 10 numbers of users are allowed to call. - Rejects calls from unregistered users. - Built-in two Predefined Configurator mobile numbers. - Standard SIM is preferable for this unit, and it will be easy to use. - SIM card Network 2G, 3G, 4G (VOLTE not supported). - GSM 3dbi Patch antenna with 3 meter cable. Ordering information RT-2WC-D31 — Size D3 100X 140X 88 RT-2WC-D32 — Size D3*270X 250X 230 RT-2WC-D33 — GSM SMS/ Calls. Ceiling mount RT-PA12V2A — Power Adapter: 12VDC, 2A. · NA Sections present in the PDF but not reproduced here: product dimensions, calibration, certification, warranty, revision history.