Android system(including information publishing system) 
model ：ZC-TC550-COE1
system ：Android 11.0
CPU: RK3568
RAM : 2G/4G/8G optional
Storage: 32GB/64GB optional
HDMI interface: HDMI In*1
TF card interface:TF card*1,(supports maximum expansion of 64GB) 
USB interface: USB*2 (USB Host*1,USB OTG*1)
network interface:RJ45 Ethernet cable interface*1,WiFi 2.4G 
headphone jack：3.5mm stereo headphone output*1 
Touch
Touch control technology:Capacitive induction technique
Number of contacts:Supports up to 10 points
Input method:Use your finger or a dedicated condenser pen
Duration of use:>80 million single touches
Response time:8ms
Touch deviation:<2mm
Glass: AG Glass, Light transmittance : >90%
Surface hardness:> Hard coating (6H)
Display
LCD screen: 55"LCD
Resolution:3840*2160
Active area:1208.6×720.4(mm)
viewing angle:178/178/178/178(L/R/U/D)
display mode：Normally black, IPS
contrast ratio：1200：1
brightness：500nits
Color gamut：92%
Screen ratio：16：9
Network
Wifi: Supports WIFI-2.4G(expandable BT-4.0) 
Ethernet: 10M/100M Ethernet port 
BT: Bluetooth4.0 
Media playback
Video format：Support RM/RMVB,MKV,TS,FLV,AVI,VOB,MOV,WMV,MP4,etc 
Audio format：MP3/WMA/AAC etc.
Image format：Supports BMP,JPEG,PNG,GIF,etc 
other 
speaker: 8euros and 3watts 
OSD language : Multi language OSD operations in both Chinese and English 
input voltage：AC Power：100～240v 50/60HZ
power consumption：≤130W
usage environment：Stable working temperature 0-50 degree s/ relative humidity≤80%/ storage humidity -10～+60℃
VESA：400*400mm
Certificate：CE/FCC/RoHS
enclosure ：user manual&qualified card&warranty card&antenna&power cable
Packaging
Single machine size :1249.6*720.4*28mm
Packing size : 1340*820*140mm
Net weight :26.9kg（Wall-mounted panel: 0.8KG, hanger: 0.75KG）
Gross weight :31.7kg
Function Description 
1, 28mm pole body, equivalent to the thickness of two mobile phones, extremely light body 43 inches equivalent to 32 inches of weight, extremely high color gamut, NTSC95% or more;
2, Android 11.0 system, its own information release system, support remote release of programs, support synchronous playback, free split screen, cross-regional remote management and monitoring;
3, support horizontal and vertical screen installation, comes with wall hanging and installation accessories, easy to install, easy to use, can be used as a module screen, optional support embedded installation;
4, self-research and development, the first echelon of the standard industry, the high-end civilian, the size of 32, 43, 55, 65inches and so on