2-In-1 Wireless mitter Receiver - Enjoy Wireless Audio Without More Wire Restrictions. In Tx Mode, Plug In the 3.5mm Aux Jack on Non-Bluetooth Tv, Fitness Equipment or Game Equipment To mit Audio To Wireless Headphones. In Rx Mode, Plug Into the Wired Speaker or Car Input Port and You Can Receive Hd Audio From Your Smartphone Via Bluetooth. Bring New Life To Your Old Home Systems. Mini Bluetooth 5.3 Audio Adapter - Bluetooth 5.3 Technology, Ensuring Lower Consumption, More Stable and Faster Wireless mission. You Just Need To Connect It with Non-Bluetooth Devices and Then They Can Be Upgraded To Bluetooth Devices. Safe Hands-Free Calling - Built-In Microphone To Answer Calls, Equipped with Noise Reduction Technology To Suppress Environmental Noise and Pick Up Sounds More Accurately. Answer or Hang Up Calls with One Click. This Auxiliary Bluetooth Adapter Also Supports Broadcasting Voice Notifications From Navigation. Provides You with the Safety and Convenience Of Hands-Free Calling While Driving. New Upgraded Tf Card Mode - Directly Insert the Tf Card and Connect It To Your Vehicle, Amplifier, Wired Audio or Any Auxiliary Jack, You Will Have An Audio Experience. If Wired Headphones Are Connected, It Can Be Used As An Mp3 Player and Play Tf Card Music Directly. Supports Multiple Formats (Mp3 or Wma or Ape or Wav or Flac). Plug and Play - Plug and Play, No Driver Required, Easy To Set Up. the Built-In Battery Of the Bluetooth Adapter Supports Tye-C Fast Charging. It Can Be Used Continuously for About 5-7 Hours After Being Fully Charged. Make Sure You Enjoy Your Favorite Wireless Content At All Times. the Led Display Screen Is More Convenient To View, Showing the Volume and Power In Real Time, and the Usage Status Is Clear At a Glance.It Has a TFCard Port and Supports TF Card Playback (The Actual Product Does Not Include a TF Card). Support Audio Equipmentwith Audio Input Interface To Realize Wireless Audio Reception and mission Product