There are many applications that do not have much room for large bulky headunits or sometimes come with no source output at all. Now you cam add Bluetooth connectivity for any audio system with our easy to use bt remote control. This Bluetooth remote mounts easily in every application and takes up almost no space. This unit will send out signal to your amplifiers and also give you control over the music being played via bt without having to fumble around with your phone so you have less distractions. This listing includes:(1) BT remote controller(1) 3.5mm stereo wire Features:Waterproof universal BT remote controller- Inputs & Outputs: USB Port, USB Charging (1A), Two RCA Line out, AUX Input- General: IPX6, Illuminated Controls- Designed for marine and powersports applications- IPX6 water resistance rating- For All Elements- BT 5.0 A2DP connectivity- Wireless connection range up to 35ft*- USB Input to play your favorite music files- 3.5mm jack auxiliary audio input- RCA Pre-output and remote turn-on to connect external amplifiers- Use it as stand-alone source unit/receiver- Easy to use - LED illuminated push buttons- Holder cage design for easy installation*Conditions may vary the maximum range Specifications Frequency response: 20Hz-20Khz Signal to noise ratio: ≧80dB T.H.D: ≦0.1% Channel Separation: ≧60dB Power: DC 12V-14.4V BT Wireless: Ver. 5.0 RCA Line Out (Pre-Amp): 1 Pair (Left & Right) 2.5Volts Aux Line Input: Plug 3.5mm Remote Out: 200mA USB Player: 4Ft Extension Cord MEASUREMENTS: Overall Length: 3.81” / 97mm Overall Depth: 1.47” / 37.4mm Overall