B-Stock, IK Multimedia iRig 2, Guitar interface for iPhone, iPod touch, iPad, Mac, 6,3mm jack instrument input for use with guitar, bass and other instruments, 6,3mm jack amplifier output for use with an external amplifier without an adaptor, 3,5mm TRRS output for use with iPhone, iPad, iPod touch, Mac, 3,5mm headphone output, Compact and lightweight design, Selectable dual-mode switch: FX and THRU, Input gain thumbwheel for easy signal control, Comes with microphone stand hook and loob fastener strip, Incl. Software (requires download), Requirements Apple: all iPhones, all iPads and iPod touch (3rd generatation or later) - iOS 4.3 or later, Requirements Android (ATTENTION, only recommended as impedance converter, no real time effects): To be compatible, the mobile device must be compliant with the CTIA/AHJ wiring standard, which is illustrated as follows. As of today, all popular Android devices branded Samsung, LG, Motorola, Google Nexus, HTC, Huawei, Sony, Lenovo, Xiaomi and more, use this standard. Requirements Mac Computer: Most Mac computers starting from late 2008 are compatible with the exception of the Mac Pro line. To check if your Mac is compatible select: About This Mac > More Info > System Report > Audio and check that "External Microphone / iPhone headset" is appearing on the list of included features., Dimensions: 72x39x21mm, Weight: 43g, B-Stock with full warranty, may have traces of use.