KingNeed S309 Wooden Multifunctional Wireless Bluetooth Speaker Card Subwoofer

1. The wooden box has a strong sense of value. Green environmental protection, elegant shape, shocking sound2. Novel structure, 2 full-range speakers (front left and right) + 1 bass diaphragm (front middle)3. Shocking bass, dynamic life, small body, big volume4. Suitable for square dance, self-driving tour, party5. Material: wood6. Playback format: MP3, WAV7. Function: card, radio, voice prompt, call function, karaoke, U disk, microphone, TF card, audio, rod antenna8. Speaker unit: 29. Connection method: Bluetooth connection10. Interface type: USB11. Bluetooth status: support voice prompts/phone calls12. Bluetooth protocol: 4.013. Channel: two-channel14. Playing time: 8-15 hours (medium volume)15. Effective distance: 10 meters16. Output power: 2.5w (2 independent groups)17. Audio input: 3.5mm18. Input voltage: DC 5V19. Input current: less than or equal to 0.9A20. Full frequency speaker: 52mm45 magnetic21. Power supply mode: USB power supply / built-in lithium battery22. Battery capacit