PROZOR 192kHz Digital to Analog Audio Converter with Bluetooth 5.0 Receiver

Supports one optical/coaxial input interface Supports one RCA/3.5mm audio output interface Adopts personalized status indicator Ultra low power consumption. Adopts Bluetooth dedicated antenna for stable signal transmission. Long press 3 seconds to turn it off Short press to turn it on. Supports digital audio conversion to analog audio signals.       NOTE: 1. This item does NOT have the volume adjust knob. If the volume (from DAC output) is not loud enough, please connect the output of DAC with LOW-impedance cellphone headset, headphone amplifier or power amplifier. 2. When using optical or coaxial as the input source, you need to disconnect the Bluetooth connection between the phone and the DAC converter. 3. Power charging: USB Power Cable - separate 5V 1A Standard Plug- wall socket. 4. DONNOT power converter by plugging the USB cable into your TV directly (unstable power supply may cause buzzing noise).   Specifications: Audio Formats PCM/LPCM Audio Sample Rate 32~19