Machine size: 115 * 115 * 200mm Color box size: 125 * 125 * 215mm Unit weight: 995g output power: 8W * 2 external magnetic horn: 4 8W * 2 input sensitivity: 400mV resolution: 90dB signal to noise ratio: 80dB working voltage: DC 5V battery: 18650:: 6000ml battery working time: 8h horn size: 57mm * 2 1. Stereo sound quality, super bass 2. Support mp3 and wma format music files 3. Support TF card, USB flash disk, Bluetooth band call and file playback FM 4. Support FM function and mobile power supply USB flash disk function 5. Support external MP3 / MP4 / computer and other audio input functions (aux) 6. Memory function, automatically playing from the last playing song 7. Portable outdoor 8 support 1 + 1 serial connection, comprehensive lighting design, fashionable visual effect 9. Support music LED intelligent spectrum pulse flashing, and support 7 modes