Sport Bicycle Bike Mini FM TF MP3 Player Music Speaker Aluminium Alloy Sliver igh-textured aluminum alloy surface,stylish and classic design. Built-in Hi-Fi high-quality and high-efficiency speaker monomer, with clear and loud voice. Built-in high-capacity rechargeable battery, it can support overlong time play. With the function of music player, Line IN and FM radio, it is easy to handle. With TF card slot, it can plug in TF card to play the music as you like.