1. Bluetooth version: 5. 02. Support functions: Bluetooth playback, TF/U disk card, radio, voice prompts, audio playback 3. Speaker unit: 52mm x 64. Interface type: USB 5. Battery capacity: 2400mAh 6. Frequency response range: 90Hz-18KHz 7. Output power: 12W 8. Charging time: about 2-4h 9. Playing time: about 3-8h 10. Expansion storage: 32GB 11. Effective distance: about 10 meters 12. Play format: MP 313. Packing list: audio x1, manual x1, charging cable x1, audio cable x 114. Shl material: wood 15. Appearance size: about 45x9x8cm 16. Weight: about 1320 gramsFeatures: 1. 6 x 52mm speakers, shocking sound 2. Bluetooth 5.0, stable and smooth signal, strong anti-interference, easy to have good sound 3. Multiple playback modes, Bluetooth, TF card, AUX, U disk, wired and wiress 4. Built-in 2400mAh lithium battery, strong battery life, energy saving and environmental protection 5. Smart compatible with mobile phones/computers/tablets and other devices, easy to connect and compatible with Windows/Android/Apple and other operating systems, and compatible with all kinds of music playback software