5V,AK2515 Audio Spectrum Analyzer VFD Sound Level Meter VU Meter Screen-Display DESCRIPTION detail: Tip: This is a loose part and needs to be assembled - For the operation and usage instructions of the spectrum, please see the following function operation video, no instructions! - 16-segment audio spectrum display PCB size 176*50mm, LED size 167*41mm. - The thicknesfor of the flattened PCB board is 14mm, the thicknessfor of the LED module is 8mm, and the total thicknessfor is 22mm. Size: narrow screen 150*34mm, wide screen 160*40mm important: 1. The module is green, the power supply is DC 5V/600MA, the maximum brightness of the whole board does not exceed 600MA, and the USB power supply with an output current greater than 600MA can be used. 2. The "BG" printed on the module is green, and the printed pins are + pole, corresponding to the "+" on the board. 3. Equipped with 33 green modules, more for spare. 4. Pay special attention to the color and polarity of the LED module when welding. Be sure to remember the row of pins, the LED module corresponding to the electrode position, and the LED module position to be soldered last. feature: 1. Support 32Hz-20KHz precise frequency sweep, and make reasonable channel settings within the range of 10Hz-20KHz. 2. Display flip function, 16-level brightness adjustment. 3. The spectrum of main landing speed, peak hold time and descent speed can be adjusted individually. 4. With smooth display and bottomless display mode, excellent AGC processing. Make the signal display richer. 5. Using a professional constant current driver chip with blanking, the LED light has no problem of light and dark flickering. Package Included: 1PC*LED Audio Spectrum DIY Kit POLICES Shipping Payment WARRANTY We only ship to confirmed Order addresses. Please comfirm that your Order address is in line with your shipping address. Please kindly note that the c ombined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size. It takes about 7 -15 working days to US; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection . If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance. Payment must be completed within 5 days. If you have any problems about payment, please contact us via We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, p lease feel free to contact us via "Ask seller a question" . We will reply your email within 24 working hours. On Jul 9, 2023 at 19:32:08 PDT, seller added the following information: