portable wireless bluetooth speaker stereo sd fm loudspeaker built-in rechargeable battery for smartphone tablet laptop

you may like.portable wireless bluetooth stereo sd card fm speaker for smartphone tablet lapfeature.:.100% brand new and bluetooth.specification:v3.0+edr.frequency response.150-1800hz.output power rms 3w thd 10%.fm frequency range.87.5-108mhz.built-in rechargeable.battery 5v/400ma.snr ≥90db.speaker 1.58inches(external.diameter 40mm)40hm*2.bluetooth connection.distance ≥25m whit the hands -function.multi-fuction: support.bluetooth/ usb/ sd card /fm.colors: grey,blue,red,gree