[Mp3 player with Bluetooth] This Mp3 player has built-in Bluetooth 5.0, which can provide faster data transmission speed (40% increase) and a more stable connection, with a longer connection distance. In addition, power consumption will be reduced and battery life will be increased. Enjoy cutting-edge technology, (Reminder: Not applicable to Bluetooth speakers/headphones)$ [Hi-Fi Lossless Music Player] A music player with powerful bass driving technology, which helps to enhance and restore the original sound. Undistorted Hi-Fi stereo music and seamless streaming via Bluetooth and TF card (supports FLAC/WMA/APE lossless music playback). In addition, you can freely switch between Hi-Fi and Deep bass modes$ [Hands-free call & navigation broadcast] Built-in noise reduction microphone to ensure clearer voice transmission and get the best hands-free call experience. Support Google navigation voice broadcast, no need to look at the phone frequently when driving, to ensure driving safety$ [Ultra-lightweight and wear-resistant clip design] The compact music player weighs only 0.7 ounces, with a suitable size (2.1 x 1.2 x 0.5 inches), and the independent volume adjustment button makes it very easy to operate. Special clip design designed for sports and music lovers, just hang it on your pocket or shirt, enjoy music when running, jogging, horse riding, hiking or other exercises without any hassle$ [Wide compatibility, enthusiastic customer service] Very suitable for car audio/home audio system, compatible with all smart phones/tablets/computers/MP3 Bluetooth devices. It supports 30 levels of adjustable volume and 6 hours of long battery life.Products from NIUNIU's store