Features: 1.Built?in Bluetooth receiver module, support mobile phone Bluetooth audio push function, considerate and practical. 2.Support digital audio conversion to analog audio signal. Built?in high?performance DAC chip, up to 192K/24bit sampling rate. 3.Using the latest Bluetooth 5.0 version, lossless transmission technology, using Bluetooth dedicated antenna, stable signal transmission. 4.Automatically switch to Bluetooth play mode after successful Bluetooth connection, support output volume adjustment. 5.Supports one optical fiber and one coaxial input interface, supports one RCA and one 3.5mm audio output interface. specification:Condition: 100% Brand New Item Type: Digital to Analog Audio Converter Material: Aluminum Alloy Audio Format: PCM/LPCM Audio Sampling Rate: 32-192K Bluetooth Audio Sampling Rate: 32-48K Bluetooth Version: Version 5.0 RCA Output Maximum Level: 1.2Vrms Highest Output Level of 3.5mm Audio Interface: 2Vrms Maximum Output Power of 3.5mm Audio Port: 30mW Maximum Working Current: 5V/60mA Working Environment Temperature: -10-+55 Storage Ambient Temperature: -26-+60 PackageList: 1 x Converter 1 x Charging Cable 1 x Antenna 1 x Manual