✅【Rebirth Your Older Home Stereo System】IDIGMALL J207 is a premium Bluetooth audio receiver to upgrade your old speaker/home music amplifier sound system/ wired headphones, also for Non-Bluetooth car stereo, to stream music wirelessly from your phone/tablet/laptop via Bluetooth connection. NOTE: It’s a receiver Only, NOT a transmitter, CANNOT work for TV. | ✅【Latest Bluetooth 5.3& Stunning HIFI Audio】Featuring the latest Bluetooth 5.3, J207 provide faster transmission and stable connection, maintain a strong Bluetooth connection in a wide signal range. Providing customers with outstanding sound quality and satisfaction is our paramount goal. Lose yourself in immersive music even in the lowest volume levels! Get started and become completely immersed in the music world! | ✅【 Hands-free Calling & Auto Reconnection】A built-in HD microphone and one “MFB” button to answer / redial / hang up / reject calls, help you make hands-free calls. You don’t have to look down the phone on the move. Make sure you drive safely! If you keep the J207 Bluetooth aux adapter into your Car charger, once you start the Car, the J207 will be power on automatically to be re-connected with your cellphone at once. This audio receiver is perfect choice for use in a car. | ✅【Easy Setup, Wider Range】Connect your amplifier or powered speaker to J207 by 3.5mm /RCA audio cable, press the MFB button to power on and enter paring mode, only need to find "J207" in the Bluetooth list of your mobile phone "Click to pair. Enjoy music freely. Adopts special circuitry to extend the wireless range to up to more than 10M/33ft(without obstacles). | ✅【22 Hours Super Long Battery Life】The working time of this aux Bluetooth adapter is up to 20 hours whether making calls or playing music thanks to built-in the large 240mAh battery and latest Bluetooth 5.3 low power technology. it takes only 2 hours to fully charge by a USB type-C fast charging cable (Included in the package).Lifetime technical support and Worry-free warranty and quick response within 24 hours!