Manovo V1 Desktop White Noise Sleep Aid Speaker Home Alarm Clock Bluetooth Speaker Features: 1. Support 4 playback modes of wireless bluetoothAUXTF cardU disk, and compatible with mobile phones, computer notebooks and other devices 2. Two-channel high-fidelity sound quality, restore the real natural environment sound effect 3. It can be used as a clock alarm, three gear timing, 8 sound effects Product parameters: 1. Material: plastic, electronic components 2. Function: insert card, radio, voice prompt, call function 3. Interface type: USB 4. Working voltage: 5V1A (power input) 5. Speaker power: 40 5W 6. Output power: 5W x 2 7. Frequency response: 100HZ-20KHZ 8. Speaker size: 45mm 9. Bluetooth version: 5.0 10. Signal to noise ratio: 75dB 11. Channel: 2.1 12. Number of speakers: 2 13. Expansion storage: 32GB 14. Effective distance: 10 meters 15. Operation mode: button 16. Play format: MP3 17. Support format: TF card 18. Power supply mode: built-in lithium battery 19. Built-in battery: 3000mAh 20. Product size: 19.3 x 9.3 x 6 cm Packing list - Speaker x 1 - Instruction manual x 1 - Charging cable x 1