Hikvision Analog 4-Wire Door Station DS-KB2421T-IM Write speed_330 MB/s Dual Connect: Use either earbud

Dual Connect: Use either earbud independently or use both together

Operating Voltage              5V±5%

fast 24 ipm mono print speed and easy network integration

You can then locate it anywhere in the world using Apple's network of millions of devices

Hikvision Analog 4-Wire Door Station DS-KB2421T-IM Write speed_330 MB/s Dual Connect: Use either earbudHikvision Analog 4 Wire Door Station DS KB2421T IM The Hikvision 4 wire villa door station, with mental design, simple appearance and great texture, supports starting video intercom and providing door permission by one touch button, which is easy to use. Plug and Play is supported, which is easy for installation and deployment, which is suitable for the scenarios of villa, detached house, etc. Features 4 wire plug & play analog door station 2MP