Features:High-quality materials: The music rhythms dance ferrofluidornaments are made of high-quality materials. The ambient temperature of the product is between 0'C-60"C. It is prohibited to use it in high-temperature environments, especially in high-temperature environments in cars in summer.Dancing with the music: This product is not a wireless speaker, does not have a speaker, does not emit sound, and does not need to be connected to any lines (wired/wireless). The ferrofluidin the glass container will follow the rhythmsof external sounds or music when turned on with one click.Easy to use: This music rhythmsdance ferrofluidornament is easy to use. Just place the sound receiving hole designed on the back of the product close to the sound source, and the ferrofluidwill dancing.Wireless design: This dancing ferrofluidornament has a built-in large-capacity battery, which can be recharged, has a long standby time and is easy to charge.Perfect gift choice: This unique musical rhythmsdancing ferrofluidornament is very interesting and is very suitable for giving to music-loving friends or family member on birthdays, Christmas, Thanksgiving and other festivals.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: plasticSize: 172*106*54mmPower: 10WPower input: 5V-2ALiquid tank capacity: 100mlBattery capacity: 4000mAhCharging time: about 8 hoursBattery life: about 8 hours