A. HiFi Lossless Sound Quality: With a lossless core decoding chip, it can decode mainstream lossless music formats. It features capacitive touch control with silent operation, so there's less worry about disturbing others. The operation is easy and smooth with little lag. It supports background playback, enabling users to read e - books while playing music. There are 4 font and color options, and users can save bookmarks and record the playback progress. B. Wireless Bluetooth 5.0 Compatibility: It uses a high - speed Bluetooth compatible chip and is equipped with a stereo solution, providing clearer, CD - level wireless sound quality. It has good compatibility, stable signal, and continuous playback. C. HiFi Speakers and High - definition Noise - reduction Recording: It has external and internal high - frequency speaker units + a customized metal diaphragm, and a speaker on the back. Users can enjoy an audio - visual experience without headphones. The built - in microphone has a sampling rate of up to 1536kbps, which can record important content, such as courses, evidence - taking records, and meeting contents. D. Convenient Folder Management/Support for Video Playback: Users can classify music by singer, album, or playlist, and also create folders according to their favorite content. It supports video playback, is small and portable, making video - watching more convenient. E. Support for Memory Cards: It supports external TF card memory expansion, with a maximum support for a 128G memory card. The body is made of CNC alloy technology and has gone through multiple processing steps. It has a delicate touch and is durable. Built - in Speaker: Yes Supported Audio Formats: mp3, WAV, AAC, FLAC Audio and Video Support: No specific description Display Resolution: 220x176 External Storage: Supported Functions: Touch screen, e - book reading, FM radio, recording, world clock Screen Size: 1.8 inches Interface: Mini USB 2.0 Headphone Interface: 3.5mm Bluetooth Compatibility: 5.0 Screen Color: TFT Color Screen Screen Resolution: 160x128 Signal Noise: Up to or below 88dB Audio: (Fast/Normal compression, 800Kbps - 1000Kbps, sampling rate 8KHz - 48KHz) FLAC (1000Kbps - 1200Kbps, sampling rate 8KHz - 48KHz) MP3 (8Kbps - 320Kbps, sampling rate 8KHz - 48KHz) WMA (5Kbps - 384Kbps, sampling rate 8KHz - 48KHz) WAV (32Kbps - 1536Kbps, sampling rate 8KHz - 48KHz) AAC - LC (8Kbps - 320Kbps, sampling rate 8KHz - 48KHz) Recording Method: Microphone Recording Format: WAV Video: No specific description Picture Support: Supports JPG/JPEG/BMP E - book: Supported Memory Card Type: TF Card Expansion Card: Supported Operation Mode: Touch Language: Multilingual (Chinese, Japanese, Korean, German, English, Danish, Swedish, Spanish, French, Italian, Hungarian, Polish, Portuguese, Slovak, Finnish, etc., 28 languages) Color: Black Material: Metal Package Contents: 1 device (without memory card) 1 headphone cable 1 charging cable Only the above package contents are included, and other products are not included. Note: Light reflection and different displays may cause slight differences between the color of the product in the picture and the actual product. The measurement error is allowed to be +/- 1 - 3cm.