Functions: - Portable 2.0 channel fabric Bluetooth speaker - IPX6 water resistant - TWS function, enhanced dual stereo sound - Hands-free microphone for easy call answering - with A2DP Bluetooth wireless music streaming - USB support - FM radio - Line input function, suitable for PC, MID, TV and other audio devices - Built-in rechargeable lithium battery - No adapter or output plug - Perfect for the beach, pool, boat, and more outdoor activities