Description: Product parameters. Product model: K1 Music formats: MP3, WMA, WAV, APE, PLAC Recording time: 100 hours Recording format: WAV (32Kbps/64bps) Screen size: 1.8-inch TFT true color display Product weight: 45 grams Playback time: 100 hours USB connection: High-speed USB2.0 (HIGH SPEED) Battery capacity: 450mA Battery type: Lithium polymer battery Product color: silver, black, gold Product size: 90*40*8mm Specifications: Function: 1. HiFi lossless sound quality: lossless core decoding chip, better parsing mainstream lossless music formats. Capacitive touch, silent operation, no need to worry about disturbing others, stress-free operation, no lag. Supports TXT format, background playback, reading e-books while listening to music, saving bookmarks, and playback memory. 2. Wireless Bluetooth 5.0 compatible: It adopts high-speed Bluetooth compatible chip and comes with a built-in stereo solution, giving you clearer and excellent CD-level wireless sound quality, strong compatibility, stable signal, and continuous and smooth listening to songs. 3. HiFi speakers and high-definition noise reduction recording: external built-in high-frequency speaker unit + customized metal diaphragm, high-quality speakers on the back, you can experience the feast without headphones. The built-in microphone and high sampling rate of 1536kbps can clearly record important content such as entire classroom recordings, evidence collection, and meetings. 4． Convenient folder management/support for video playback: Songs can be classified by artist, album, playlist, or you can create folders based on your favorite content. It supports video playback, is compact and portable, and makes watching videos more convenient. 5. Support card: Support external TF card to expand memory, support memory card expansion within 128G. The fuselage is made of CNC alloy technology and is carefully crafted through multiple processes. It feels so delicate and is both durable and outstanding. Package includes: 1* music player, 1* wired headphones, 1* data cable. 1*manual