Music spectrum using the powerful, energy-saving DS1302 watch chip with a power-off retention function for continued operation after switching off. Music spectrum analyser supports 8 levels of brightness adjustment and automatic brightness function.(can be adjusted in the ) Music spectrum LED indicator supports time setting for 3 alarm groups, 7 music ringtones can be and also displays the current temperature value. Music spectrum analyser with 1T high speed processor with high precision . audio signal is checked and processed by fast Fourier transform algorithm to display the amplitude of the current music frequency in real time. color:As shown Material:plastic Package Contents: 1 x Music spectrum 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.