[Music Visualization]: This Fluid Pickup Lamp is designed to provide a visualization experience. The fluid changes speed and shape according to different music rhythms, offering a of visual enjoyment. [Size]: The Ferrofluid Rhythm Lamp measures 3.86x3.86x4.17 inch in size. [Usage]: The Audio Music Pickup features an artistic appearance with model switches on the back. [Desktop ornament]: The tabletop ornament, when Plug in the audio cable to , and the ferrofluid will rhythm with the music. [Desktop ornament]Music Ferrofluid Rhythm Lamp is perfect for Gaming, Car, PC, TV, Party Desktop Decor. Specification: fluid capacity 4ML Frequency response 60HZ-20K HZ Operating voltage USB Type C DC 12V Size Chart: 9.8cmx9.8cmx10.6cm/3.86inchx3.86inchx4.17inch Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Attention: This product is not a speaker, thank you!! Material: plastic colour:black Package Contents: 1 x Ferrofluid Music Rhythm Lamp Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.