VersionTech BT001-1 Portable Bluetooth Speakers, Mini LED Colorful Wireless Stereo Ball Speakers with Remote Control, Build-in Rechargeable Battery for iPhone/Samsung Stereo sound quality: Implemented with 6w total acoustic drivers and ultra-small size produce a wide audio spectrum System upgrade: Equipped with the advanced Bluetooth 3.0 technology, compatible with most Bluetooth-enabled devices (Bluetooth v2.1 and over) Light and portable: Portable size (4.9 x 4.9 x 4.3 inches) with the original magic box, only 10.8 ounces, easily to carry with Energy supply: Built-in 1000ma rechargeable battery for up to 8 hours of playtime, built-in memory chip for breakpoints playback function Colorful display: A combination of music and magic: Built-in 8 color rainbow led lights, it enables 16 million colors disseminated