Features: This USB MP3 player offers plug-and-play functionality with built-in 4GB/8GB storage, rechargeable battery via USB, and a clear display screen for lyrics, providing seamless music enjoyment during travel or workouts. Equipped with multi-format audio compatibility (MP3/WMA), a compact plastic body, and intuitive button controls, it delivers high-quality sound while maintaining portability. Ideal for students, commuters, and fitness enthusiasts seeking a lightweight music companion with instant USB charging and extended playback time. Perfect for outdoor activities, gym sessions, or daily commutes—its pocket-sized design and power-saving mode ensure uninterrupted entertainment. Enhances your music experience with real-time lyrics tracking and easy song navigation, powered by a rechargeable lithium battery designed for durability. Specifications: Material: Plastic Options: Black MP3 Player with Built-in 4GB Storage, Black MP3 Player with Built-in 8GB Storage, Blue MP3 Player with Built-in 4GB Storage, Blue MP3 Player with Built-in 8GB Storage, Silver MP3 Player with Built-in 4GB Storage, Silver MP3 Player with Built-in 8GB Storage, Red MP3 Player with Built-in 4GB Storage, Red MP3 Player with Built-in 8GB Storage Play Time: Approximately 12 hours Standby Time: 48 hours Dimensions: Approx. 85 x 30 x 10 mm / 3.35 x 1.18 x 0.39 inches Screen Size: 1.2 inches Operation Mode: Button Type Interface: USB 2.0 Headphone Jack: 3.5 mm Supported Audio Formats: MP3, WMA Screen Resolution: 160 x 128 Package Includes: 1 x MP3 Player Note: Please allow 1-2 cm differences due to manual measurement. The actual color may vary slightly due to monitor display variations.