【Upgrade Bluetooth 5.2】 Adopting advanced Bluetooth 5.2 technology, the connection is more stable, the transmission is more efficient, and the power consumption is lower. Easily pair wireless headphones or Bluetooth speakers, get rid of cable constraints, and enjoy wireless music anytime, anywhere 【Long-lasting battery life】 Built-in large-capacity battery, it can be used for a long time on a single charge, only 1.5 hours to fully charge, 20 hours with headphones and 4 hours with speakers. Say goodbye to the worry of mobile phone power consumption and focus on enjoying pure music time 【Massive storage expansion】 MP3 player needs to be used with a memory card, supports up to 512GB TF card expansion (non-provision), easy to store tens of thousands of songs. Compatible with MP3/OGG/FLAC/AAC/WMA/WAV/APE and other formats to meet different music needs(No memory in the mp3 player) 【HIFI lossless sound quality, immersive listening】 Built-in high-performance audio decoding chip, support FLAC, APE, WAV and other lossless formats, restore delicate sound quality. Rich bass combined with clear vocals for immersive musical enjoyment 【Versatile and practical design】 In addition to music playback, it also supports practical functions such as recording, FM radio (wired headphones are required as antennas), alarm clock, sports timing, calendar, etc., to meet the needs of study, work and entertainment 【Gift high material accessories】 When purchasing this D2 MP3 player, we will give you two protective films (one already attached to the body), one protective cover, one charging cable, one non delay wired earphone, one 32GB memory card, and one lanyard as a gift D2 MP3 Player