Smart LCD Projector Q351 low-cost smart projector built around Android 9.0

📌 Core Specs & Hardware Native Resolution: 1280×720 px (720p HD), supports up to 1080p input which is displayed at 720p output Brightness: Approximately 120–150 ANSI lumens, rated between 300–4000 ISO lumens depending on the seller—real-world output is modest . Contrast Ratio: About 1000:1, typical for budget LCD models . Lamp Life: LED light source rated for around 30,000 hours ⚙️ Design & Connectivity Operating System: Android 9.0 onboard, with a built‑in app interface and basic mirroring support . Weight & Size: Compact (~1 kg) and easily portable—even as small as a desktop unit Projection Range: Throws from ~1.8 m to 6 m, giving a screen size of roughly 80″–300″ diagonal depending on setup . 🔌 Inputs & Features Lens & Focus: Manual focus lens only; no keystone or digital zoom features explicitly listed. Connectivity Ports: HDMI, USB, Bluetooth, and built‑in speaker. Some variants include smartphone control apps and air‑mouse remotes Speaker: Integrated mono speaker—adequate for private viewing, though external audio is recommended for group or immersive setups.