This is a little spinner with Bluetooth and loudspeaker

On the top left you can see the speaker on the right you can see the battery and on the bottom you can see the audio amplifier for the loudspeaker of the spinner and the on-off switch

On the top left you can see the Bluetooth chip with the micro USB connector you can also see the antenna for the Bluetooth of the spinner

See the battery of the spinner

This is the audio amplifier for the loudspeaker

This is the top side of the speaker

This is the bottom side of the speaker of the spinner

This battery it is a lithium ion battery

From left to right you can see the micro USB connector the Bluetooth chip next to it is a quartz and Denise is an antenna for the Bluetooth and the top is the switch