Model: SY901MJ21 - Color: Black - Quantity: 1 - Material: ABS plastic - Screen display: 9 inch TFT - Weather proof oxidation proof durable alloy outdoor station supporting embedded and hanging installation - High sensitive touch technology (With voice hint) - No radiation low consumption and high resolution - Monitor intercom unlock hands-free and multi-melody - Able to connect with 2 electronic lock - Volume brightness and contrast adjustable - Easy to install - Photo model video recording available - Supports 4-CH video-in 1-CH video-out - 4-CH can switched manual / Automatic. Video-out can connect to the PC with video capture card - The indoor unit can connect either of our outdoor station - Power supply: AC 110~240V 50/60Hz DC 15V / 2A - Current: - Talk delay time: 120s +/- 10% - Monitor delay time: 60s +/- 10% - Video camera sensor: Sharp 1/4" 420 lines Sony 1/4 (Selectable) - Lens: 3.6mm 92 degree - Outdoor device with night version - 16 polyphonic sound optional. - Ultra-thin design of the indoor unit steel and plexiglass touch buttons - Packing list: - 1 x Indoor unit - 1 x Outdoor unit - 2 x Connection cables (5 meter) - 1 x 2-Flat-Pin power charger (100~240V / 110cm) - 2 x Terminals - 1 x Screws (Bag) - 1 x Video camera adapter cable (15cm) - 1 x English user manual