Compact audio mixer for smartphones. Multiple inputs - connect a mic, pin-mic, musical instruments, and media players. Stereo 3,5 mm jack Mic In mini-phone jack with plug-in power (2.5 V) for connecting pin-mic. Combo type Mic input supports XLR and 6,3 mm jack equipped with phantom power (48 V). Powered by the smartphone connection or battery-powered operation, Alkaline battery (AAA, LR03) x 4, for use without draining smartphone power. Center cancel function for reducing the volume of pre-recorded vocals (results vary depending on the original recording). Loop back function controls whether the smartphone’s backing track is recorded back into the smartphone along with your voice. Use as an audio interface with DAW apps for smartphones or tablets. Produce unique split-screen music videos with Roland’s 4XCAMERA app for iOS and Android. Change the background in your videos using Roland’s Virtual Stage Camera app for iOS. Input: 9 channels. Output: 2 channels. Package inculudes: USB Micro-B type cable, USB OTG Micro-B type to USB Micro-B type cable, USB Type-C(TM) to USB Micro-B type cable, manual. Dimensions: 104 x 155 x 41 mm. Weight: 220 g. Colour: White