Abstract: The present disclosure provided a speaker monomer with a pair of dynamic speakers thereof includes a housing, an electro-acoustic conversion member received in the housing, and a PCB. The electro-acoustic conversion member includes a first dynamic speaker and a second dynamic speaker, and the housing is a double-barrel-shaped configuration and includes a first receiving room for receiving the first dynamic speaker therein, and a second receiving room arranged in parallel and separated from the first receiving room for receiving the second dynamic speaker therein. The PCB is installed in an end portion of the housing and electrically connected to the first and second dynamic speakers. The present disclosure not only can improve sound quality of an ear-in earphone, but also can reduce a volume of the ear-in earphone, improve assembly efficiency and reduce a defective rate of the ear-in earphone.

Abstract: A TWS earphone with multiple speakers and a crossover circuit embedded therein includes a body and a circuit unit set in the body. The circuit unit includes a Bluetooth module, a crossover circuit electrically connected to the Bluetooth module, at least two dynamic speakers or an assembly of at least one dynamic speaker and at least one balanced armature, with different response features, electrically connected to the crossover circuit, and a battery module supplying power for the circuit unit. The Bluetooth module is configured to wirelessly receive audio signals and then output the audio signals to the crossover circuit for frequency division. The crossover circuit is configured to transmit medium-low frequency audio signals after frequency division to one dynamic speaker and high frequency audio signals to the other dynamic speaker or the balanced armature.