OTG (On-TheGo) Converter & Cables
Today, if you want to connect your mobile phone to your audio system, you have three options: Analog, via a headphone jack, Bluetooth (the most popular, also because it doesn't require cables and offers superior audio quality compared to analog connections), and OTG (digital wired connection). OTG is the best system because it's more stable than Bluetooth and offers higher resolution, reaching transmission speeds of up to 192 kHz.
OTG Converter/Cables
HD Audio from Mobile Phone
The Z-OTG-BT C is a high-quality audio converter that allows you to integrate your sources (a mobile phone or a Bluetooth device) into your audio system, ensuring the best possible audio performance. The converter features a 192KHz/32-bit OTG input (Supports charging function) to transmit high-quality audio from your mobile and has digital audio outputs (optical and coaxial) and a couple of RCA. The built-in Bluetooth is of the highest quality, a Qualcomm v5.2 192KHz/24-bit (supports aptX, aptX HD, and aptX Adaptive), as are the internal components, including JRC 5532 OP (High Performance Low-Noise Dual OP), and TI PCM5102A 384KHz/32-bit DAC. Its compact size allows for easy installation everywhere.
Z-OTG-OPT and Z-OTG-OPT, High Quality Audio Cables/Converters. Zapco introduces two new cables/converters that enable high-quality connection and transmission between your smartphone and your in-car electronics. The OTG-OPT features a High-Quality OTG input and Optical Digital Output, while the OTG-RCA features the same quality OTG input and a Stereo RCA Output. If you don't want to spend on expensive converters, change your main source and continue to use your smartphone, these are the cables for you.