Eco friendly product 3W Wheat Straw speaker, support Micro SD & USB player

Communication:Bluetooth, USB
Support Memory Card:Yes
Built-in Microphone:Yes
Special Feature:Portable, Mini
version::V5.0
transmission distance:10 meters
Loudspeaker output:3W
Frequency:100Hz -15kHz
Signal-To-Noise:80dB
Built-in Li-ion polymer battery:500mAh
Playback time (70% volume):4hours
Material:Wheat Straw + ABS
Dimension:87*72*40mm
Accessory:30CM Micro USB Charging cable/manual