1The operation is simple, and all audio can be received and transmitted freely. 2This product can convert digital audio products into analog audio signals. 3The music on the mobile phone can be wirelessly transmitted to audio equipment, suitable for entertainment TV sets, mp3 cd players, etc. 4Perfectly solves the limitations of audio equipment and expands the functions of various audio equipment. 5Strict quality control and quality assurance, high safety factor, can be used with peace of mind. Item Type: Coaxial Converter Bluetooth Protocol Support: A2DP and AVRCP Transmission Distance: Approx. 15meter / 49.2ft (open environment) Input: AVX optical fiber coaxial Bluetooth Output: RCA AVX Bluetooth Compatible: For Android/IOS system mobile phone, tablet, TV, game console and other Bluetooth device settings, and audio equipment with audio input interface 1 x Coaxial Converter 1 x Charging Cable 1 x Coaxial Cable 1 x Audio Cable 1 x User Manual