Feature: 1. Versatile Connectivity: Supports headphone output, RCA output, optical audio signal output, and coaxial signal output, making it compatible with a wide range of audio devices. 2. Multi-functional Usage: It can be used as a headphone amplifier, audio source for amplifiers, or even as a BT digital turntable when connected to an advanced decoder. 3. High-Quality Audio: When not connected via BT, the coaxial interface can be used as an input for decoding, allowing you to connect it to a LCD TV or set-top box\u0027s coaxial audio interface for enhanced audio quality. 4. Enhanced Sound Experience: By connecting the RCA output to an amplifier, you can enjoy a cinematic audio experience as the sound from your TV will be played through the speakers, providing immersive sound effects. 5. Premium Material: Features a high-precision, all-aluminum casing that not only provides a premium feel but also offers excellent shielding performance and minimal assembly errors. Specification: Features: Versatile Connectivity: Supports headphone output, RCA output, optical audio signal output, and coaxial signal output, making it compatible with a wide range of audio devices. Multi-functional Usage: It can be used as a headphone amplifier, audio source for amplifiers, or even as a BT digital turntable when connected to an advanced decoder. High-Quality Audio: When not connected via BT, the coaxial interface can be used as an input for decoding, allowing you to connect it to a LCD TV or set-top box's coaxial audio interface for enhanced audio quality. Enhanced Sound Experience: By connecting the RCA output to an amplifier, you can enjoy a cinematic audio experience as the sound from your TV will be played through the speakers, providing immersive sound effects. Premium Material: Features a high-precision, all-aluminum casing that not only provides a premium feel but also offers excellent shielding performance and minimal assembly errors. Specifications: BT version: 5.0 BT Protocol: APTX-HD/APTX-LL/APTX/AAC/SBC BT Receiving Sampling Rate: 16-24BIT/44.1-48KHZ Fiber Signal Output Sampling Rate: 16-24BIT/44.1-48KHZ Coaxial Signal Output Sampling Rate: 16-24BIT/44.1-48KHZ Coaxial Signal Input Sampling Rate: 16-24BIT/44.1-192KHZ 3.5 Headphone Output: can push 8-300 ohm impedance headphones, 120mw RCA Output: 2Vrms/20-20KHz Distortion Rate: 0.019% SNR: 105dB Power Supply Voltage: DC5-24V (5V must be 2A or above, 12V must be 1A or above, 12V2A power supply is standard by default) Color: Black Size: 27*18.3*5.5cm/10.63*7.20*2.16in Weight: 364g/12.83oz Package List: 1 * BT Audio Decoder 1 * BT Antenna 1 * Power Adapter Package List: 1 * BT Audio Decoder 1 * BT Antenna 1 * Power Adapter