HiFi Lossless Sound Quality This MP3 player with Bluetooth is built with quality speakers and a powerful sound decoding chip, restoring the original HiFi sound quality of music for a better listening experience. It includes a 3.5mm headphone jack, so when you want to listen quietly, you can use headphones (not included) to enjoy a private listening space. It also features a recording function with lossless sound quality, clearly reproducing human voice. Multi Functional Not only for music, this HiFi MP3 player also offers practical features such as calendar, stopwatch, alarm clock, FM radio, pictures, e books and more. This MP3 music player is a gift for children, family or friends. Small Design 3.6 in (92 mm) long, 1.57 in (39.8 mm) wide, 0.31 in (8 mm) thick, 2.01 in screen, and 26 g lightweight. Portable and stylish, it is suitable for exercising, running, jogging, traveling and hiking without burden. A nice companion for your workouts. Bluetooth Connection If you prefer wireless listening, you can connect to this portable MP3 player via Bluetooth 5.4. It offers stable transmission and antiinterference capabilities, so you can enjoy your music without intermittent signals. Note that the Bluetooth function only supports connections to Bluetooth headphones and Bluetooth speakers.