Safe and Secure: This Bluetooth adapter has FCC authorization, the FCC ID is: 2A4RO-M6 , and has CE certification, complies with regulations, are legal for sale, operate in accordance with FCC authorization, comply with applicable industry standards, and do not interfere with other electronics. For those related certificates, please check our image display 3-IN-1 Design: Support bluetooth receiving (RX), bluetooth transmitter (TX), FM transmitter mode. Equipped with HD LED display, working status and Bluetooth mode are clearly visible. With multi-function buttons, one-key switch mode, or play/pause music, simple operation. Built-in high-definition microphone, support wireless music listening, hands-free call, navigation, let you drive more safely Bluetooth 5.0 HI-FI Sound: It features advanced Bluetooth V5.0 chip to ensure Hi-Fi stereo lossless Bluetooth audio signal for music streaming to AUX or RCA input speaker, car or home stereo system. Multiple Interface Options: Built-in digital to analog chip, support 3.5mm AUX, RCA, digital optical, coaxial, USB (memory card), TF interface. Comes with AUX cable, RCA cable, USB charging cable, it can satisfy all of your connection needs and match with various audio devices with both Bluetooth and non-Bluetooth function Note: For optical fiber transmission, please remember to plug the optical fiber interface, and then the product needs to switch to OPT optical fiber mode before it can be used. The default mode is Bluetooth mode, and switching to the corresponding mode can realize optical fiber transmission and playback. The maximum sampling rate of optical fiber is up to 192KHz Notice: When you find that you need to reset your device multiple times to connect instead of connecting automatically, you need to check if your other devices (like your phone) have Bluetooth turned off Tips for pairing headphones: Long press the button of the headset charging compartment to make the indicator become milky white, pay attention to your mobile phone Bluetooth must be turned off at this time to avoid connecting back. Then open the Bluetooth adapter, switch to the TX red light, and wait for the pairing Parameters:
Product model: M6
FCC ID: 2A4RO-M6
Bluetooth version: Bluetooth V5.0
Support protocol: RX: A2DP, AVRC; TX: A2DP


Interface Type:
Input: 3.5mm AUX+RCA+Optical+Coaxial+USB+TF interface
Output: 3.5mm AUX+RCA
Support format: MP3/WAV/WMA/APE/FLAC/G729/M4A/ALAC/AMR/DTS/MIDI/G726/MTY
Charging time: about 2H
Life time: RX about 10H, TX about 8H
Bluetooth distance: ≤10M (open place)
Charging method: Micro USB 5V/0.5A
Compatible devices: Android, IOS system mobile phones and PAD, active speakers, power amplifiers, and Bluetooth speakers or headphones that support A2DP/protocol are connected for use

What you get:
1 * Bluetooth 5.0 adapter
1 * AUX cable
1 * RCA cable
1 * USB charging cable
1 * Infrared remote control
1 * User manual