Features: 4.0in large screen: equipped with 4.0inches display screen, providing you with clear and delicate picture quality, allowing you to have a better visual experience. Open source: Supports open source OS, allowing you to freely install programs according to needs, expand functionality, and improve flexibility in use. Retro design: The classical retro exterior design handheld device, bringing you a nostalgic feeling while incorporating modern technological charm. Powerful compatibility: It is compatibility with multiple emulators and game format, supporting classical game, allowing you recall the past. Excellent sound quality: Equipped with quality horn, the sound is clear, providing you with better sound visual enjoyment. Long lasting battery service life: Equipped with high-capacity battery, ensuring that you can enjoy gaming even when you are out and not easily interrupted. Specifications: Component: ABS Color: refer pictures to selection please Product size: 17.5x12.4x5.3cm/6.89x4.88x2.09inch CPU: RK3326 Resolution: 720x720 Battery capacity: 4000mAh Memory card capacity: 128G Port: USB Note: Other accessories demoed in the pictures is not included. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution. Package includes: 1 Piece R36MAX Handheld Retro Game Console 1 Piece Charging Cable 1 Piece Protective Film 1 Piece 128G Memory Card 4.0in large screen: equipped with 4.0inches display screen, providing you with clear and delicate picture quality, allowing you to have a better visual experience. Open source: Supports open source OS, allowing you to freely install programs according to needs, expand functionality, and improve flexibility in use. Retro design: The classical retro exterior design handheld device, bringing you a nostalgic feeling while incorporating modern technological charm. Powerful compatibility: It is compatibility with multiple emulators and game format, supporting classical game, allowing you recall the past. Excellent sound quality: Equipped with quality horn, the sound is clear, providing you with better sound visual enjoyment.