Music Rhythm Spectrum Light adopts acrylic shell, special LED fence + light-proof paper design, 2515 high-brightness LEDs, bright colors, uniform brightness, and realizes pixel dot matrix effect, giving you an experience different from other products Since we are a Chinese seller, the manual needs you to send us an email, and we will send you an English manual. Thank you for your understanding. Feature: 1. As long as there is power supply, it can work normally (powered by mobile phone charger) 2. Voice control, no need to connect the audio cable, the sound will dance with the sound 3. The clock is automatically displayed silently, and there is no need to reset the time when the power is off 4. Display flip function, 16 levels of brightness adjustment. 5. Using a professional constant current drive chip with blanking, the LED light has no flickering problem. 6.9 Spectrum display mode, time display mode, brightness adjustment 7. Dedicated audio spectrum display driver chip, built-in a variety of DSP decoding algorithms 8. Keep the memory function, which can permanently save the parameters set by the user Product parameters: Product name: LED Clock Spectrum Light Product size: 150*34mm (5.9X.3in) Product weight: 85g (0.19ib) Input voltage: 5V Type-C / 12VDC Output power: 5W Power interface: USB Packing list: Music Spectrum Analyzer*1 Power cord*1