a9 bluetooth speaker mini wireless loudspeaker led tf usb subwoofer speakers mp3 stereo audio boombox music player for xaomi som lowest

[xlmodel]-[custom]-[8888].by brand heyker.features.model: a9 bluetooth wireless speaker.compatible with: mp3,tf/micro sd card.supports: bluetooth,hands-calls,loudspeaker,microphone,tf card music playing.functions: aux function,songs track.interface: ,microphone,mini usb,tf card slot.bluetooth:bluetooth v2.1.speaker impedance: 4 ohm.transmission distance: w/o obstacles 10m.power output: 3w.freq: 90hz-20khz.battery capacity: 400mah.charging time:about2 hours.working time:medium volume 2-3 hou