Yixin public network intercom H-28Y: portable volume, rich functions, 5000 kilometers nationwide, intercom without pressure. The appearance is light and rich in functions. The rich business functions such as single call/group call/group call, GPS/Beidou hybrid positioning, Bluetooth, WIFI, etc. are optional. The 4400mAh high-capacity battery + Type-C interface has no pressure on endurance. It fully meets the professional communication requirements of Shangchao property, hotel catering, construction site, transportation and other scenes.# Yixin H-28Y Public Network Interphone# Yixin Public Network Interphone H-28Y Public Network Interphone# Yixin Interphone# Lisheng Interphone# Explosion-proof Public Network Interphone# Toppen A50Ex Hydrogen Explosion-proof Digital Interphone# Public Network Interphone# Binqi BQ-278 Public Network Interphone# S60 Professional National Interphone# Binqi Interphone# Huaan Jie Interphone# Youlitong Public Network Interphone# Multimode Interphone# National Interphone# Public Network Interphone intelligent cluster intercom