Time and date settings.Built in speaker and microphone.Up to 8 hours of extended battery life.Lossless and high fidelity music player.Support multi format music playback and synchronization.Mini design, with a screen tempered glass on the front to prevent scratches. and portable, easy to put into your pocket, no burden, and worth having.Supports memory expansion and supports -SD card expansion cards up to 128GB.Support recording, alarm clock, video playback, electronic photo album, time display, and external speakers.Mini Personal stereo, dance fitness, leisure and entertainment, mountain climbing and cycling, suitable for various environments.Wonderful wireless connection, using Bluetooth 5.0, can connect audio devices such as Bluetooth headphones and Bluetooth speakers, providing more stable connection and better sound quality.Operation:ButtonMemory card type:-SD card (not included)Charging interface:-USBHeadphone interface:3.5MM dual channel stereoSupport audio formats:MP3/WMA/APE/FLAC/WAV/OGGVideo format:AMV/Screen resolution:128 x160Standby time:15 daysBattery capacity:210mAhBattery life:8 hours (3.5MM earphones listening to music)Bluetooth:5.0Suitable audience:students, young peopleMemory expansion:supports up to 128GB (excluding)Language support:multiple languages such as Chinese/English/French/German/Russian/Spanish.Colour:BlackMaterial:ABSSize:Screen size:1.77 inchesPackage Contents:1 x host1 x USB Line1 x English instruction manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.