Ultra-compact studio-quality microphone preamp for iPhone/iPad/iPod touch and Android devices that features 45 cm long TRRS cable to connect to any iOS device headset jack and XLR input connector for microphones. It also provides Gain control, +48 V Phantom power switch, on/off switch and headphone output. Standard and Phantom power are both provided by an included 9 V battery (life approximately 30 hours with dynamic microphones and 10 hours with phantom powered condenser microphones). Device comes with a free download of two apps from the App store: iRig Recorder FREE, an easy-to-use voice recording/editing app, and VocaLive FREE, a multi-effects processing app for singers. Dimensions: 32 x 35 x 83 mm. Weight: 100 g.