Features: 1. Bluetooth 5.0, fast connection and stable signal, compatible with all Bluetooth devices. 2. ABS cover for protect speaker from water, dust, shock. 3. IPX5 waterproof, dustproof, shockproof. 4. 5W*2 big power with two bass diaphragms on each side, vibrate when playing music. 5. Cylindrical shape and built-in left and right channel offer 360 stereo. 6. Call function, noise canceling microphone makes you answer calls without reaching your phone. 7. FM receiver makes you listen to the radio freely. 8. Support MP3, WMA, WAV, FLAC, APE format music files. 9. Support TF Card or misro SD Card up to 32G, support USB 2.0 Disk. 10. Support USB flash disk plug and play. 11. Support external MP3 MP4 computer and other audio input function (AUX) 12. TWS function, you can conncect two speakers with one phone sync. 13. Easy button control, you can press buttons to turn onoff, playpause, switch mode, skip songs, adjust volume etc. 14. 1200 mAh battery for up to 10 hours of playtime at 23 volume on a full charge. Specifications: 1. Bluetooth: V5.0 2. Wireless transmission range: 10m 3. Battery capacity: 1200mAh 4. Built-in voltage: 3.7V 5. Playing time: about 2H 6. Speaker specifications: 45mm*2 7. Speaker power: 5W*2 8. Charging input: 5V500MA 9. Size: 67*68*172mm 10. Weight: about 363g 11. Function: portable, Bluetooth function, support FM radio, USB, TF card, AUX playback, call function, TWS Packaging list: Speaker x 1 charging cable x 1 Audio Line x 1 manual x 1