Welcome to our store! This 2-in-1 Bluetooth transmitter and receiver functions as a Bluetooth audio transmitter, specially designed for audio devices without Bluetooth capability (such as MP3, MP4, TVs, and PCs). Connect the Bluetooth transmitter to a non-Bluetooth audio device via the included 3.5mm audio jack to transform it into a Bluetooth-enabled device, allowing it to be used with Bluetooth headphones and speakers. As a Bluetooth audio receiver, it's specifically designed for car stereo systems and home audio systems. It can convert traditional car and home audio systems into Bluetooth-compatible systems, easily pairing with Bluetooth-enabled smartphones, laptops, and tablets. In receiver mode, the Bluetooth receiver transforms traditional speakers into Bluetooth-enabled ones. Once paired, wirelessly stream music from your Bluetooth-enabled smartphones, laptops, tablets, etc. Supports automatic reconnection. In transmitter mode, the Bluetooth transmitter is designed for audio devices (such as MP3, MP4, TVs, and PCs) lacking Bluetooth functionality. Connect the Bluetooth transmitter to the audio device via the included 3.5mm audio jack to convert it into a Bluetooth-enabled device for use with Bluetooth headphones and speakers. Features ANC noise reduction and AEC echo cancellation for magnificent stereo sound and wonderful audio quality. Perfectly compatible with iOS/Android smartphones, tablets, nearly all Bluetooth-enabled audio devices, and stereo systems with 3.5mm ports. Low power consumption with a built-in 600mAh battery ensures up to 8 hours of working time, allowing you to enjoy wireless internet freely all day. Easy to use, no app download required. Transmission Frequency: 2.4-2.48GHZ Transmission Range: Approximately 10 meters Battery Type: Polymer lithium battery Battery Capacity: 600 mAh Continuous Use Time: ≤4.5 hours Bluetooth Version: 5.0 Charging Time: ≥ 2 hours Charging Voltage: 5V Stereo Includes: 1 x 2-in-1 Bluetooth Audio Transmitter Receiver, 1 x Micro USB Cable, 1 x 3.5mm Audio Cable, 1 x 3.5mm to RCA Cable, 1 x Instruction Manual Customer satisfaction is our top priority. If you encounter any issues with your product upon receipt, such as damage or incorrect quantity, please contact us immediately. We are committed to providing you with the best after-sales service.