Warranty: 1 Year Features: Brilliant LED light source with energy-efficient performance Supports HD 720P, Full HD 1080P, and 4K content Projection size from 45 to 150 inches HDMI, USB, and AV connectivity support Projection distance: 1m to 4.5m Dual-band Wi-Fi (2.4GHz & 5GHz) Built-in dual 4W speakers 60W power adapter included Manual focus adjustment Technical Specifications: Light Source: LED Native Resolution: 1280×720P Supported Resolution: Up to 4K Screen Size: 45–150 inch Lamp Life: 30,000 hours Inputs: HDMI, USB, AV Wi-Fi: Dual Band 2.4G & 5G Bluetooth: 5.3 Power Supply: 60W adapter