Introducing the 2-in-1 Bluetooth 4.1 Audio Transmitter & Receiver, the ultimate solution for all your wireless audio needs. This innovative device combines the functions of a transmitter and receiver, making it a versatile addition to your audio setup. With its Toslink feature, you can easily transmit music from your mobile phone, walkman, TV, or computer to your Bluetooth receiver, such as stereo headsets, speakers, or car stereos.But that's not all, this device also works as a Bluetooth receiver, allowing you to add Bluetooth capability to your headphones, home stereo, or car stereo. Its dual connect mode makes it a convenient and efficient choice for transforming any device with a 3.5mm jack into a Bluetooth-enabled one. And with Bluetooth 4.0 technology, you can enjoy enhanced audio quality, improved connection stability, and faster pairing.The 2-in-1 Bluetooth Transmitter & Receiver is incredibly easy to use, with no additional drivers required. Its compact size makes it ideal for use at home, in the car, or for outdoor activities. It also offers flexible connection options, with two 3.5mm jacks for input and output, and a 3.5mm female to 2 RCA male cable included in the package for wider compatibility with various devices.Equipped with a 600mAh Li-ion battery, this device allows for convenient recharging and offers a long working time of over 8 hours. It is compatible with both Android and iOS systems, as well as all Bluetooth audio devices such as TVs, speakers, PCs, CD players, iPhones, iPods, iPads, tablets, MP3 players, and car stereos.Made of high-quality plastic, this 2-in-1 Bluetooth Transmitter & Receiver is durable and reliable. It features a sleek black and white design and is compact in size, measuring 9.8*5.8*1.3cm (3.9*2.3*0.5 inches). It weighs only 0.08kg (2.8oz), making it easy to carry around. This device is also CE certified and has a working temperature range of -10 to 55 degrees Celsius.In the package, you will receive the Bluetooth Transmitter/Receiver, a 3.5mm male to male cable, a 3.5mm to 2 RCA audio cable, a USB charging cable, and an English and Chinese user manual