Touch operation: millisecond-level capacitive touch, silent operation, a light touch of the finger, instant switching function, smooth and unstuck Built-in English-Chinese dictionary: The built-in English-Chinese dictionary has a huge vocabulary to meet the needs of daily word search, and an English learning assistant can check words at any time Smart e-book: TXT format e-book, automatic page turning, smart bookmarks, memory reading function, font size and background color can be adjusted High-fidelity HIFI sound quality: The tuner personally adjusts the sound to make it balanced and clear, giving you a more comfortable music experience Subtitle synchronization display: English words, articles, and lyrics can be displayed synchronously, carry it with you, read and study anytime, anywhere Bluetooth function: It can connect to Bluetooth headsets, speakers and other Bluetooth audio devices, with more stable connection and better sound quality Sound recording function: With sound recording function, it is convenient to record the sound Music alarm clock: Built-in alarm clock function, customizable alarm ringtones Specifications: Model: S308 Screen size: 1.77 inches Memory card type: TF card (with a 4GB TF Card) Operation method: touch Interface: Mini USB Headphone jack: 3.5mm Supported audio formats: MP3, WMA, WAV, FLAC, APE Screen color: color screen Screen resolution: 160x128 Menu language: multiple languages Battery type: lithium battery Battery capacity: 300mAh Battery life: 20 hours