ลำโพงบลูทูธไร้สาย B12 รองรับTF/FM/USB/TWS กำลังขับ5W เสียงดี

Frequency:30HZ-20kHZ Communication distance:10M Playback time:90-120 minutes Power supply mode:DC 5V Signal to noise ratio:50DB Horn parameters:4*5W Battery capacity:800mA Charging time:3 hours Product functions:（music playing) TF/FM/USB/TWS TF USB support 32GB(Only FAT format is suppor