Remote High-Low Line-Level Controller Antennas & Accessories Built-in microphone allows for phone

Built-in microphone allows for phone calls with compatible devices

Sony(R) Cyber-shot(R) DSC-H50/B

Enables monitoring of car movement when vehicle is parked

speaker connection wire

Remote High-Low Line-Level Controller Antennas & Accessories Built-in microphone allows for phoneConverts the speaker levels of a factory or aftermarket radio to RCA while giving the user remote control over the amp volume; Allows user to add a trunk mounted amp ; for subwoofers; Provides an additional set of preamp outputs from a head unit equipped with only 1 set; Allows more control over a system's sound; Adjusts head unit output from 2W 40W per channel ; Mounts in dash or under dash Warranty: One Year Country of Origin: United States