Frequency:100Hz-20KHz

　　Distortion:≤0.5%

　　Signal-To-Noise:≥85±2db

　　Loudspeaker Output:4Ω3W

　　RF Range:10meters

　　Battery:Built in li-ion battery

　　Capacity:300mAh

　　Charging Voltage:DC 5V

　　Working Voltage:3.3~4.5V

　　Charging Time:~3h

　　Playback Time:~6h

　　Housing Material:ABS

　　Color:Optional

　　Accessories:USB cable, ,User Manual, etc