BY Portable Bluetooth Speaker Waterproof Wireless Loudspeaker 3D Stereo Music Surround Sound System Outdoor Speakers Support TF AUX(Red)

Features* Built-in Bluetooth wireless transmission* Can play TF card stored MP3 songs* Can play U disk stored MP3 songs* Supports all 3.8mm external audio input terminals* FM radio function support* Bilt-in Rechargeable battery* Hands free call function support* TWS function*IPX6 waterproof Technical parameter:Loundspeaker Output: 4?5W*2(4ohm THD80dBBattery Capacity /voltage: 1800mAh/3.7VBattery Charge Time: around 2HWorking Time: 4-6hoursUSB Power Input: 5V 2ASpeaker Size: 172*76*76mmPackage Includes:1 * NBY-18 Speaker1 * Audio Cable1 * Charging Cable1 * User Manual