Depusheng M4, Black, 4-Channel Usb Interface Mixer, Dj Sound Controller Mini Product Details BLUETOOTH WIRELESS STREAMING IOS, Android smart phone to this audio mixer. Very easy to wirelessly stream all music tunes to the mixing board from Spotify or Pandora.Bluetooth works within 1.5ft 4 CHANNELS: The mixer is great for multiple devices connectivity because it has 4 channels, compatible to most audio files .There are 2 XLR/ LINE jack combo microphone input,1 pair 1/4?? and 1 pair RCA stereo inputs. Plus 1 pair RCA stereo output and 1 pair 1/4?? Main output plus headphone jack USB AUDIO INTERFCE: Built-in audio interface can connect directly to your PC and record/edit/monitor high quality audio with Pro Tools/Logic Pro X/GarageBand/Audacity and more software. It provides very convenient connectivity to your audio processor CLEAN SOUND QUALITY: Portable size for small venues and for travel. It produces solid, clear, and clean sound with minimum hiss noise.The DELAY and REPEAT effects adds personality to your mixer from MAIN. It can be adapter or USB powered. Sturdy built quality aims for long-term and heavy use EASY to RECORD AND CONNECT w/PC: This delicate mixer contains a USB soundcard and audio interface to record and connect to your MAC or PC. and it can work with universal digital audio files. Compatibility is amazing and can be used by beginners or studio professional applications.?If there?s any problem,please don?t hesitate to contact us, we are very happy to help and strive for good customer service? Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.