Bluetooth Speakers, SmartSpeed Portable Speakers Outdoor Waterproof Speakers with Built-in Mic,Support NFC and AUX, Touch Control Stereo Subwoofer IPX4-level waterproof and dustproof, you can use it in the bathroom and in the outdoor Built-in mic enables you to make hands-free calls with ultra-clear voice Special design enables the sound to spread in 360 degrees, giving you the stereo sound effect Supports NFC function, connects to your phone easier and faster saving all the trouble Enter sleep mode automatically after 5 minutes without operation to save power