阿拉伯联合酋长国采购需求：LED网格屏、LED海报屏、LED显示屏、LED窗帘、4K LED屏幕、高清LED屏幕

I'm interested in your availability and pricing for a portable all-in-one screen with a 138-inch diagonal display. It should offer a fine pitch LED (1.58mm), perfect for main gatherings. The screen needs to support 4K/UltraHD resolution, suitable for meetings with 20 to 300 participants, and should allow for multi-screen display capabilities and wireless sharing via Wi-Fi or Bluetooth. Key specifications I'm looking for include a resolution of 1920x1080, brightness of 350 nits, and an ultra-slim design with a thickness of 28.5mm and weight around 135KG. The embedded system should run on Android 8.0 with 4GB memory and 16GB storage, offering an elegant solution without the need for external devices. A user-friendly interface and remote control for ease of operation are also essential. Let me know if you can supply this product and provide a quote.