It's been opened, but it's in excellent condition as it's been stored carefully with almost no use. The main unit has been tested and is working. The audio cable (approx. 1.4M) shown in image 4 is also included. If you don't need it, please let me know in the comments section. ● Audio Cable Mini Jack 3.5mm to Dual 6.35mm Compatible with PC Headphones Mixer Console 【Product Description】 Brand: Yamaha (YAMAHA) Number of Channels: 3 Product Dimensions: 20.2 depth x 12.9 width x 6.3 height cm Product Weight: 0.8 kilograms Connectivity: AUX, USB Power Source: Corded Electric Loopback function convenient for internet streaming. Equipped with a studio-quality D-PRE preamplifier, allowing you to capture the sound of vocals and instruments as they are. Features a large volume slider in a compact body. You can intuitively adjust the microphone volume at your fingertips during internet streaming. 192KHz/24Bit high-resolution. Bundled with Cubase AI music production software Microphone input terminal: 1 system Power consumption: Maximum 2.5W, External dimensions: (Width) 129 x (Height) 63 x (Depth) 202mm, Weight: 0.8kg Connection interface: USB terminal Input channels: Mono (MIC/LINE): 1 (including headset microphone (plug-in power) input), Stereo (LINE) / Mono (GUITAR): 1, USB IN: 1, AUX IN: 1 Output channels: MONITOR OUT: 2, PHONES: 2 (including headset headphone output) Thank you for viewing.