* Type Bluetooth Speaker&nbsp;*Connection method Bluetooth connection&nbsp;*Interface type USB*Battery capacity 4000&nbsp;*Frequency response range 50HZ-50HZ*Output power 5v-1A*Signal to noise ratio ___75dB&nbsp;*Power supply mode Built-in lithium battery&nbsp;*Channel 2.1 Playback time 10*Extended storage 32GB&nbsp;*Bluetooth protocol 4.2&nbsp;*Number of speakers 2* Effective distance 10 meters&nbsp;*Features Voice prompt, card, call function&nbsp;*Operation mode&nbsp;*Applicable people General&nbsp;*Shell material plastic&nbsp;&nbsp;*Support format SD card&nbsp;* Speaker adjustment mode&nbsp;&nbsp;*Box material metal* Appearance size 16*98*80MM

Wireless fast charging mini stereo car subwoofer wireless bluetooth speaker