Driven by 2 professionally Antimagnetic bar speaker and 2 bass sound guide holes; USB-Cable power supply, easy to connect. No need of drivers or software, avoids the trouble of charging and offers the experience for you Classic stylish design and creative rotary switch design rotate knob to Adjust the volume and light up warm ambience light at the same time for iPad, but also personal computer, TV or other non-Bluetooth devices with 3.5mm audio jacks . Applicable scene: car, desktop, fitness, outdoor, home Connection method: 3.5MM audio jack Bluetooth Playback format: MP3 Supported format: U disk wooden desktop blue tooth speaker Support wired playback wireless playback Wooden craftsmanship, double speakers