1. Bluetooth version: 5.1+EDR2. Connection distance: 10m 3. Frequency response range: 60. Hz-18KHz 4. Signal-to-noise ratio: 75dB5. Speaker size: 57mmx 26. Output power: 10. Wx 27. Battery capacity: 3600m. Ah 8. Playing time: 5-6h 9. Product functions: BT/TF/FM/USB/AUX/TWS/LED10. Fast connection, stable signal, compatible with all Bluetooth devices 11. Mesh cover to protect the speaker from water, dust, impact 12. Supports TF card, USB disk plug-and-play, supports external MP3/MP4/computer and other audio input functions 13. Cylindrical shape and built-in left and right channels, providing 360-degree stereo sound 14. TWS function, 360-degree stereo sound