Dual MEQ15BT Bluetooth Wireless Smart EQ Processor for Smartphones in White Control balance, fader and 7 EQ presets with presets from a Bluetooth connected device (Smart EQ app required, free download on iTunes and Google Play) Works with Apple and Android smartphones and tablets, including iPhone and iPad Bluetooth (A2DP) audio streaming with volume control 3 Pairs of RCA preamp outputs (F/R/S), subwoofer gain control, signal sensing for auto amp remote turn-on, High and low level inputs