Product description HighEnd Technology Product Completely fits and works Yesido YAU-41 2-In-1 Stereo Bluetooth Audio Transmitter Receiver 3.5mm Aux Wireless Audio Adapter For TV PC Speaker Car Sound System Home Sound System Simple and easy, comfortable, easy to carry With good performance and high quality material, it may work for a long time. Provide a full protection from dust, shock, scratches and bumps and other daily damage Ordinary speaker to Bluetooth speaker Support mobile phone wireless connection, high resolution, support traditional connection AUX-in speaker Equipped with 3.5mm adapter Compact and lightweight wireless transmitter is easy to carry on size 5.0 Bluetooth version, supports 10m transmission distance, good to listen to music, no jammed Widely Compatible Yesido YAU41 Audio Adapter Suitable for cars, mobile phones, and general speakers, turning general speakers into Bluetooth speakers. Features: 10 hours Music playback time Listen to your favorite songs from the TF card Connect the audio adapter to the car radio and enjoy hours of relaxation Receive Bluetooth signal through Bluetooth and then pass to wired audio devices 5.0 Bluetooth version, supports 10m transmission distance, good to listen to music, no jammed Tum the wired audio into Bluetooth signal and transfer into Bluetooth device and then outplay It is provided with a TX/RX button through which you can switch from Transmitter to Receiver mode. This Bluetooth adapter comes with the latest Bluetooth 5.1 technology and has some major developments and advantages: transfer speed up to 2Mbs, far less energy consumption, and more stable connection, which means fewer interruptions, dropouts and general connectivity issues. With hi-res audio becoming increasingly common, Bluetooth 5.1 is here to ensure an even more impressive listening experience. Key features: Bluetooth transmitter: Transmit audio source via 3.5mm Aux stereo jack to Bluetooth speakers, headphones, audio system, etc. Bluetooth receiver: Receive Bluetooth audio signals and send to speakers and other audio system Hand-free phone calls: Make or receive phone calls via its internal microphone, without the necessity to disconnect the Bluetooth connection from your mobile phone TF card player: Store your favorite songs and other audio files in TF card and playback via the TF card slot, either wirelessly via Bluetooth transmitter or wired via Aux jack connection Typical applications: Car: Bluetooth receiver, implement wireless connection from your phone to car audio Flight: Bluetooth transmitter, transmit audio from airline seat to your headphones TV set: Bluetooth transmitter, transmit audio from TV set to your headphones Bluetooth V5.1 profiles: EDR, A2DP, HSP, AVRCP Key Features: HighEnd Technology Product Completely fits and works Simple and easy, comfortable, easy to carry Ordinary speaker to Bluetooth speaker: Tum the wired audio into Bluetooth signal and transfer into Bluetooth device and then outplay Bluetooth 5.0 Listen to your favorite songs from the TF card It is provided with a TX/RX button through which you can switch from Transmitter to Receiver mode. Receive Bluetooth signal through Bluetooth and then pass to wired audio devices Connect the audio adapter to the car radio and enjoy hours of relaxation Bluetooth Car Adapter: Upgrade your old car stereo simply by inserting Bluetooth receiver into Aux 3.5mm jack. Stream music from phone to car; Use hand-free phone calls or enjoy MP3 audio from TF card. You will love the multifunctional Bluetooth adapter for car Airplane Bluetooth adapter for headphones: Insert the included airplane audio adapter into the dual-prong airline jacks. Use the Bluetooth transmitter mode to transmit audio from airline seat to your headsets wirelessly Integrated TF card slot: Play back MP3 and other lossless audio formats from TF card directly and transmit audio via 3.5mm plug to AUX input of speakers (Rx mode) or wirelessly to Bluetooth headsets (Tx mode) Rechargeable 180mAH internal battery: Up to 12 hours of playtime after a full charge; Type-C charge port and cable; fixed 3.5mm stereo plug, space-saving accessory for car, computer, TV set and home stereo; airplane adapter included for your entertainment in flight Internal microphone for hands-free calling: One-button operation to answer / redial / hang up / reject calls. Plug and play without complex setup; create convenience for your driving experience.Latest Bluetooth V5.1 technology delivers shorter latency or lag, faster pairing and ultra-stable connection, CVC8.0 Noise Cancellation and Digital Signal Processor (DSP), crystal-clear sound quality