Indoor HD Store Advertising Play Gob LED Display P1.86 640*1920mm. Ultra Slim & Lightweight: Only 45mm thickness with less than 35kg weight per panel for easy installation. High Refresh Rate: Super high refresh rate of 3840Hz ensures delicate and smooth video pictures. Flexible Control Options: Supports USB, WIFI, network port, and 3G/4G wireless control methods. Linkable Design: Easy to link multiple panels to create larger displays with 16:9 aspect ratio. Comprehensive Protection: Features antisepsis, antistatic, and protection against overcurrent and short circuits. Lifetime Maintenance: 2-year warranty coverage with lifetime maintenance support provided. Multiple Certifications: Passed FCC, CE, RoHS, CCC, ISO14001, and ISO9001 international standards. Versatile Applications: Suitable for advertising, decoration, display, exhibition, and guidance uses.