SPECIFICATIONS 4x2 INCH SPEAKER SIZE USB/TF/FM RADIO/BT BLUECONNECT FUNCTION TWS FUNCTION BUILTIN FM RADIO AUX INPUT MICROPHONE INPUT RGB COLORFUL LIGHT EFFECT *RECHARGEABLE BATTERY 3.7V/3000MAH VOLTAGE OUTPUT DC SV FREQUENCY RESPONSE: 40Hz-20KHz SENSITIVITY RANGE:870B+3dB
