The SmartRig+ Di makes your recording work easier by connecting professional microphones and guitars (or other instruments) to your smartphone, tablet, DSLR camera, or camcorder. Two independent channels allow you to connect and control the gain of multiple microphones or guitars simultaneously. The interface also features three types of inputs to accommodate any configuration: two XLR microphone inputs, two 1/4" (6.35 mm) guitar inputs, and two 1/8" (3.5 mm) TRS inputs for connecting instruments or microphones. Outputs to a lightning adapter for use with iPhones. It provides 48V phantom power for microphones and has a 3.5 mm headphone output for real-time sound monitoring. The two thumbwheels for gain control make it easy to set precise levels and allow for switching between mono and stereo output modes when needed. Powered by a 9V battery.