M1 Bluetooth Speaker Alarm Clock Wooden Wireless Desktop Loudspeaker 1. Bluetooth version: 5.0 2. Support functions: Bluetooth playback, TFU disk card, radio, voice prompts, audio playback 3. Speaker unit: 52mm x 6 4. 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: MP3 13. Packing list: audio x1, manual x1, charging cable x1, audio cable x1 14. Shell material: wood 15. Appearance size: about 45x9x8cm 16. Weight: about 1320 grams Features: 1. 6 x 52mm speakers, shocking sound 2. Bluetooth 5.0, stable and smooth signal, strong anti-interference, easy to have good sound quality 3. Multiple playback modes, Bluetooth, TF card, AUX, U disk, wired and wireless 4. Built-in 2400mAh lithium battery, strong battery life, energy saving and environmental protection 5. Smart compatible with mobile phonescomputerstablets and other devices, easy to connect and compatible with WindowsAndroidApple and other operating systems, and compatible with all kinds of music playback software