1. Multiple Audio Output Interfaces: Bluetooth5.2 audio mitter has three output interfaces: fiber optic, coaxial, and AUX, which can meet various audio/power amplifier needs. 2. Connecting To Old-Fashioned Speakers Or Amplifiers: Stereo audio component receivers can solve the problem of speakers without Bluetooth and cannot be played using Bluetooth through the AUX/ interface or fiber coaxial interface of old-fashioned speakers or amplifiers. 3. Function: Stereo audio component receivers can convert computer/TV USB digital audio into fiber optic/coaxial/AUX output, and then connect to various audio/power amplifiers. 4. Memory Connection: 5.2 Bluetooth Audio Receiver Adapter can automatic memory connection. After successful connection for the first time, the connection can be automatically memorized when turned on later. 5. Easy to use: The Audio Receiver remember your settings after powering off. The installation is very simple, just connect the mitter to the socket and audio system, and pair it with Bluetooth headphones/speakers to . Interface: USB Wireless Type: Bluetooth Content: AUDIO Bluetooth version: V5.2 Bluetooth protocol: A2DP AVRCP Frequency range: 2.402GHz-2.480GHz Frequency response: 100HZ-20KHZUSB Audio: 16 bit 48K Audio encoding: mission distance: 10 meters Number of connected devices: 1 Signal to noise ratio: 90dB Output method: fiber optic/coaxial/AUX Support system:for Win ALL/for Linux/for -5 Color:Black Material:plastic Package Contents: 1 * BT 5.2 Audio Receiver 1 * USB to Type-C Data Cable 1 * 3.5 Audio Cable 1 * Fiber Optic Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.