A multifunctional LED device, comprising: - an LED driver and power supply unit configured to supply power to an LED lighting unit and drive the multifunctional LED device; - a wireless transceiver module configured to receive and send audio signals and control signals to and from a remote smart terminal; - a control unit configured to process audio signals and control signals and directly connecting the LED driver and power supply unit, wherein the wireless transceiver module sends the received audio signals and the received control signals to the control unit for further processing; - a wireless transceiver unit configured to forward audio signals or control signals processed by the control unit to another LED device, - an audio power amplifier which is configured to receive processed audio signals from the control unit and to drive a speaker for playing the received audio signals and - an LED lighting unit configured to emit light characterized in that - the control unit is further configured to generate and output Pulse Width Modulation signals to adjust lighting with a determined frequency and an adjustable duty cycle or Pulse Width Modulation signals with a determined duty cycle with an adjustable frequency - the LED power supply receives the Pulse Width Modulation signals from the control unit and drives the LED lighting unit to adjust the emitted light accordingly; - wherein the LED power supply unit, the wireless transceiver module, the wireless transceiver unit, the control unit, the speaker, the audio power amplifier, and the LED lighting unit are integrated in the one multifunctional LED device. - an LED driver and power supply unit configured to supply power to an LED lighting unit and drive the multifunctional LED device; - a wireless transceiver module configured to receive and send audio signals and control signals to and from a remote smart terminal; - a control unit configured to process audio signals and control signals and directly connecting the LED driver and power supply unit, wherein the wireless transceiver module sends the received audio signals and the received control signals to the control unit for further processing; - a wireless transceiver unit configured to forward audio signals or control signals processed by the control unit to another LED device, - an audio power amplifier which is configured to receive processed audio signals from the control unit and to drive a speaker for playing the received audio signals and - an LED lighting unit configured to emit light - the control unit is further configured to generate and output Pulse Width Modulation signals to adjust lighting with a determined frequency and an adjustable duty cycle or Pulse Width Modulation signals with a determined duty cycle with an adjustable frequency - the LED power supply receives the Pulse Width Modulation signals from the control unit and drives the LED lighting unit to adjust the emitted light accordingly; - wherein the LED power supply unit, the wireless transceiver module, the wireless transceiver unit, the control unit, the speaker, the audio power amplifier, and the LED lighting unit are integrated in the one multifunctional LED device.