Features: This DAC and bluetooth-compatible converter converts optical coaxial digital audio signals and bluetooth-compatible receivers to stereo analog signals. Help users connect high-quality digital audio signals to common AV amplifiers. This product is very suitable for home theaters, teaching, training institutions, conference rooms, home appliance stores and other places. Bluetooth-compatible receiver, built-in bluetooth-compatible 5.0 chip, support bluetooth-compatible AAC. Support automatic switching of bluetooth-compatible mode. External bluetooth-compatible antenna.Support automatic switching of bluetooth-compatible mode.Personalized indicators.Support one optical fiber and one coaxial interface input.Built-in high-performance DAC chip supports 192Khz/24-bit audio parameters.Support 2RCA and 3.5mm audio port output.Support output volume control.Ultra low power consumption. Specifications: Material:Metal Colour: Black DAC chip supports 192Khz/24-bit audio parameters. Package Includes: 1x Digital to Analog Converter note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.