1. Wireless 5.0 Bluetooth technology offers a free listening experience. It reduces latency, provides fast data transmission, and has strong anti - interference ability. It supports background Bluetooth playback and fast - forward/rewind functions. Important note: This MP3 player serves as a Bluetooth transmitter, not a receiver, and cannot be paired with a mobile phone. 2. It features HiFi lossless sound quality. Using high - quality chips, it supports formats such as MP3, WMA, APE, FLAC, WAV, DRM, and ACELP, ensuring lossless audio quality. It has intelligent digital noise reduction, employing a professional intelligent noise - reduction core chip to effectively block out noise and protect you from its harm. The sampling rate can restore the true sound of music. 3. It has a powerful functional design, including music listening, recording, FM radio, folder management, settings, Bluetooth connection, calendar, video playback, e - book reading, stopwatch, alarm clock, time - saving mode, pause - point playback, AB repeat mode, and text synchronization. 4. It comes with a 1.8 - inch screen and supports TF cards. The screen is clear and vivid, with low power consumption and more energy - saving features. It has 7 buttons, including an independent volume key and a power - on/off key, making it elegant and easy to use. It has a built - in 32G memory and can be expanded up to 128G, offering higher compatibility. 5. It is small, lightweight, and convenient to carry, equipped with a hand - rope. It weighs only 30g, has a stylish appearance, and a compact design. It is a product from the NIUNIU store.