Tested - comes with everything it did when new.

Enjoy Wireless Streaming Music

• This car Bluetooth adapter can be connected to non-Bluetooth car audio systems, home stereos, speakers, wired headphones via the 3.5mm AUX adapter; And equipped with a Bluetooth 5.0 chip for stable connection / fast transmission / wide signal range. Just pair it with your phone and start listening to your favorite music!
• 【Intelligent Noise Reduction Tech】Our Bluetooth audio receiver adopts the latest CVC8.0 Noise Cancellation and Digital Signal Processor (DSP) technologies, which can eliminate echo and block out intrusive background noise (such as wind, traffic, or crowds), providing you with crystal-clear calling sounds.
• 【Up to 16 Hours of Battery Life】The working time of this aux Bluetooth adapter is up to 16 hours when making calls or playing music. And it takes only 2.5 hours to fully charge the device by using a Type-C fast charging cable (Included in the package). In addition, this Bluetooth music adapter can be used while charging, which is very convenient.
• 【Hands-free Calling & Navigation】A built-in microphone and one “MFB” button to answer / redial / hang up / reject calls, help you make hands-free calls. And the Bluetooth audio adapter supports broadcasting voice notification from existed navigation App. You don’t have to look down the phone on the move. Make sure you drive safely!
• 【Dual Connection】The portable Bluetooth stereo adapter can be paired with 2 devices at the same time. You can enjoy your music and never worry about missing any calls. Once paired, the car receiver will automatically reconnect to your last paired Bluetooth devices, as long as they are within the wireless range.

COMSOON Bluetooth Music Receiver - Best Companion While Driving!

Wide Compatibility
Compatible with all Bluetooth enabled devices, like iPhone, Android smartphones, iPad, laptop, MP3, etc.

Portable and Elegant
This car Bluetooth receiver is compact, lightweight, and easy to carry! The aluminum frame and rounded corners are aesthetically pleasing and have a comfortable grip.

Battery Indicator
Once the wireless receiver has successfully paired with the phone, its power will be displayed on the phone to know its usage time.

Pairing Steps:
1. Long press the "MFB" button for 3 seconds, the receiver power on and the indicator light flashes red and blue, which means it’s pairing mode.
2. Turn on the Bluetooth function of your smart device, search for "J22" and connect.
3. After successful connection, the indicator flashes blue once every 5 seconds.
4. Plug the 3.5mm audio connector into the AUX port on your receiver and the other end into the audio input port on your home stereo or car stereo. Then you can enjoy music or answer hands-free calls.

How to Pair with The Second Bluetooth Device?
1. Turn off the Bluetooth function of the first smart device, and the receiver will enter pairing mode again.
2. Turn on the Bluetooth of the second wireless device, search for "J22" and connect.
3. Turn on the Bluetooth function of the first smart device, select “J22” in your pairing history.
4. Then both of 2 devices have connected to the receiver at the same time.

Note:
Charge the product at least once every 3 months when not using for a long time.

Package Included:
1 x Bluetooth AUX Car Adapter
1 x 3.5mm Male to Male Connector
1 x 3.5mm AUX Cord
1 x Type-C Charging Cable
1 x User Manual