Features 1.RETRO AND MODERN: The portable bluetooth speaker combine retro design and modern technology to cater to the individual needs of young people and show a unique music style 2.SMALL AND PORTABLE: The bluetooth speaker has a small and miniature exterior design that can easily fit into a pocket or handbag, allowing you to enjoy excellent music anytime and anywhere 3.MULTIPLE FUNCTIONS: The wireless speaker has a built in card radio, which support listening to radio programs and connecting to computers, mobile phones and other devices to play music, meeting various needs 4.LONG LIFE: The wireless speaker has a built in high capacity battery that provide longer playback time, allowing you to enjoy a longer music journey 5.CORROSION RESISTANT PLASTIC: Mini bluetooth speaker is made of excellent plastic material, has strong corrosion resistance, durable, waterproof,light weight specificationItem Type: Portable Bluetooth Speaker Material: Plastic Battery Type: Lithium battery Battery Capacity: 400mah PackageList 1 x Bluetooth Speaker 1 x USB Cable 1 x Multiple Audio Lines 1 x User Manual NoteShipped with built in battery, shipped without small memory card.