Thank you for your interest in the product. Please read the following and await your bid. 【Product Description】 Brand/Manufacturer: Douk Model Number: VU22 XX-VU22 【Product Information】 Compatible Devices: Speakers, Laptops Connector Type: RCA, AUX Color: Silver Brand: Douk Audio Color: Metallic Audio Input: Stereo RCA / 3.5mm AUX / Microphone Audio Output: Stereo RCA / 3.5mm AUX Input Impedance: 100K Input Voltage: 0.1-2Vrms Frequency Response: 5Hz-20KHz LED Color: Switchable Brightness: Adjustable Gain Adjustment: Supported Operating Voltage: DC 5V (≧1A) Power Interface: USB (type-C) Setup Saving: Supported VU Meter Diameter: 45mm Dimensions (W * D * H): 177 * 115 * 59mm / 6.97 * 4.53 * 2.32in Net Weight: 661g / 1.46lb Package Weight: 900g / 1.98lb 【Condition of the Product】 Number of Uses: 1 time Condition: I received it from a friend, so I don't know the details, but it's a super-beautiful item used only once. It seems to work fine, but please understand that I don't have an environment to confirm the operation. 【Accessories】 Everything in the photos is included. 【Other】 I will ship it with waterproof measures over the original box. 【Notes】 I can offer a small discount within a reasonable range, so feel free to comment. Please refrain from purchasing if you are nervous, as it is a used item that has been in someone else's hands. Thank you for your understanding of used items. Please ask if you have any questions. Thank you for your consideration. #Douk #audio #audio #sound #display sound level meter #audio equipment #speaker #laptop #rare