Features: 1. Use cool colorful lighting effects to create an atmosphere 2. Support TF card music playback 3. Digital display clock design, both a speaker and a clock, can be used as an alarm clock, one thing with multiple uses 4. High- internal magnetic speaker, full sound, fine toneProduct parameters: 1. Material: ABS, ectronic components 2. Function: insert card, radio, voice prompt, call function 3. Bluetooth protocol: 5. 04. Effective distance: 10 meters 5. Interface type: USB 6. Frequency response range: 60Hz-15KHz 7. Output power: 5W 8. Expansion storage: 16GB 9. Signal-to-noise ratio: 75DB 10. Chann: stereo 11. Number of speakers: 112. Distortion rate: less than 0.5% 13. Support format: MP3, TF card, Bluetooth 14. Speaker adjustment method: button 15. FM function: 16. Battery capacity: 2400mAh lithium battery 17. Play time: about 18 hours 18. Product size: 8.5 x 8.5 x 8.5 cm 19. Product weight: 330 grams 20. Version difference:- Clock version: dual alarm clock- Sensor version: dual alarm clock, motion induction bright screen (5 meters range)- Voice version: dual alarm clocks, motion induction bright screen, voice broadcast of payment