The white JO-1FD Hands-Free Color Video Intercom Expansion Monitor Station from Aiphone can be added to the JO Series Video Intercom System. It features a 7″ color LCD display and electrostatic touch-sensitive buttons for system control. The expansion monitor station is less than an inch thick and allows for hands-free VOX or PTT communication. Features: 7″ LCD screen  Slim design  Hands-free communication  Electrostatic touch buttons  VOX or PTT communication  Simple 2-wire connection to door  Specifications: Monitor 7.0″ (17.8 cm) TFT color LCD display Communication Hands-Free: Auto-voice actuationPTT: Press-to-talk, release-to-listen Mount Type Wall-mount Material of Construction Flame resistant ABS resin Electrical Electrical Box: 3-gang box Power Supply 18 VDC from power supply (not included) Contacts Dry contacts: N/O 24 VAC/VDC, 500 mA Current Consumption Standby: 38 mA; Maximum: 420 mA Ambient Temperature Range 32 to 104°F (0 to 40°C) Dimensions (W x H x D) 9.0 x 5.1 x 0.8″ (23.0 x 13.0 x 2.1 cm) Weight 1.06 lb (0.48 kg)