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

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: 4Ω5W*2(4ohm,THD<1%)
Speaker: 45mm*2
Version: V4.2
Frequency Response Range: 90Hz-20KHz
Signal Noise Rate: >80dB
Battery Capacity /voltage: 1800mAh/3.7V
Battery Charge Time: around 2H
Working Time: 4-6hours
USB Power Input: 5V 2A
Speaker Size: 172*76*76mm

Package Includes:
1 * NBY-18 Speaker
1 * Audio Cable
1 * Charging Cable
1 * User Manual