Welcome to our store！</br> 1、Two in One Adapter: There are two usage modes for Bluetooth audio transmitters: in TX mode, a 3.5mm cable is used to connect the audio source to headphones, amplifiers, and in RX mode, Bluetooth transmits audio from smartphones to devices such as headphones. 2、Stable Connection: Bluetooth adapter, low latency technology provides clear, distortionless digital sound and low latency, achieving stable connection, wide signal range, fast transmission, and reduced power consumption. 3、Widely Applicable: The Bluetooth transmitter receiver is equipped with a 3.5mm audio interface and is compatible with most devices on the market, such as televisions, headphones, audio music streaming systems, speakers, PCs, MP3s, and other devices. 4、Convenient and Practical to Carry: The Bluetooth adapter adopts the latest Bluetooth chip, and its ultra compact design will save you space. It can be carried around without any burden. 5、Easy to Operate: The Bluetooth transmitter and receiver screen will display TX/RX and other logos, with a user friendly design, making the operation easier to understand, simple to operate, and clear at a glance. No driver or app is required for use. <div class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> <p class="wang-edit-text">Item Type:Bluetooth&nbsp;5.1&nbsp;Transmitter&nbsp;Receiver <p class="wang-edit-text"><style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> Product Material: Abs+Metal Battery Information: Lithium Battery 150mah (Shipped With Built-In Battery) Bluetooth Version: V5.1 Working Hours:&gt;7h Charging Time: Approx. 2 Hours Interface: 3.5mm </div> 1 x Bluetooth&nbsp;5.1&nbsp;Transmitter&nbsp;Receiver<div>1 x Connection Line</div><div>1 x Connection Adapter</div><div>1 x Charging Cable</div><div>1 x Instructions&nbsp;</div> Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>