A method for switching play modes of a wireless speaker, the wireless speaker comprising a camera, and the method comprising: deriving age information of a user in a current application scenario by the camera, wherein the step of deriving the age information of the user in the current application scenario by the camera comprises: acquiring a face image of the user in the current application scenario by the camera; extracting a facial feature from the face image; and determining the age information of the user according to the facial feature; controlling the wireless speaker to switch into a first play mode in response to that the age information of the user derived by the camera meets a first preset condition, wherein the first play mode is a mode in which gain of a specific frequency of the wireless speaker to which an elderly person is not sensitive is increased; characterized in that , the wireless speaker further comprises a microphone array, and the method further comprises: acquiring voice information of the user by the microphone array in response to that the wireless speaker does not switch into the first play mode according to the age information derived by the camera, and controlling the wireless speaker to switch into another play mode different from the first play mode depending on the voice information acquired by the microphone array; wherein the step of acquiring voice information comprises monitoring whether the voice information includes wake-up information by a built-in wake-up word detection module. deriving age information of a user in a current application scenario by the camera, wherein the step of deriving the age information of the user in the current application scenario by the camera comprises: acquiring a face image of the user in the current application scenario by the camera; extracting a facial feature from the face image; and determining the age information of the user according to the facial feature; controlling the wireless speaker to switch into a first play mode in response to that the age information of the user derived by the camera meets a first preset condition, wherein the first play mode is a mode in which gain of a specific frequency of the wireless speaker to which an elderly person is not sensitive is increased; characterized in that , the wireless speaker further comprises a microphone array, and the method further comprises: acquiring voice information of the user by the microphone array in response to that the wireless speaker does not switch into the first play mode according to the age information derived by the camera, and controlling the wireless speaker to switch into another play mode different from the first play mode depending on the voice information acquired by the microphone array; wherein the step of acquiring voice information comprises monitoring whether the voice information includes wake-up information by a built-in wake-up word detection module. acquiring voice information of the user by the microphone array in response to that the wireless speaker does not switch into the first play mode according to the age information derived by the camera, and controlling the wireless speaker to switch into another play mode different from the first play mode depending on the voice information acquired by the microphone array; wherein the step of acquiring voice information comprises monitoring whether the voice information includes wake-up information by a built-in wake-up word detection module. <EOS>