Product model           YC-T4655           Appearance size           1306X827X111.7mm           Weight           40KG           LCD screen           LCD screen size           55 inches (16:9)           LCD screen brand           LG/ Samsung           Physical resolution           1920 * 1080           Display color           16 million 770 thousand colors           Display area           1209.6 * 680.4 mm (horizontal * vertical)           Refresh rate           60Hz           brightness           350 cd/m2           contrast ratio           1300:1           Angle of view (degree)           > 178 degrees           Touch screen           Induction way           Infra-red           Writing style           Finger, touch pen           scanning speed           50scans/s           Linear error           Less than 3mm           Touch times           Not limited           communication interface           USB           Antiknock           Morse 7           computer system           CPU           Intel core I3 (optional configuration)           A main board           ASUS H61 (optional)           Graphics           Integrated HD graphics           Network card           Integrated 10/100/1000M adaptive network card           Memory           The standard 4G DDR3, the highest 16G           Hard disk           500G           operating system           7/Windows XP Windows           USB port           USB2.0 four group USB3.0 two group           VGA output           15 needle computer interface (RGB): a set of           HDMI output           a set           television system           Tuner           1           Image format           PAL/SECAM, NTSC (Option)           Channel storage           125           Sound system           Speaker type           Built in speaker, customer can own external speaker           Horn maximum output power           8 euro X10 W x 2           Audio features           stereo           Interface           Video input           Coaxial antenna port: 1           Composite video input port: 1           S terminal: 1           15 needle computer interface: 1           Color terminal: 1           USB interface: 1           High definition multimedia interface (HDMI): 3           Touch input           USB touch port: 1 (connect the computer to achieve touch function)           Audio input           Left / right channel S-Video/ composite video input port: 1           Computer audio input interface: 1           Left / right channel YPbPr input / composite video input port: 2           Remote control / menu           Remote control support menu, sleep, input signal source selection keys, etc.           Menu support Chinese, English           Installation method           Can be wall (with expansion screws), mobile support           input voltage           Alternating current: 100 to 240 volts 60/50 Hz           Power           300 watts           Safety certification           3C           Enclosure           Specification, warranty card, certificate, remote control, battery, power cord, VGA line, computer audio line, touch line, touch CD, touch pen           environmental factor           Operating temperature: 0 degrees Celsius to 40           Operating humidity: 10% ~ 80%           Storage temperature: -20 degrees Celsius to 40           Storage humidity: 5% ~ 95%