Features: 1. Easy to Use: Bluetooth version 2.1. No software installation required plug and play. 2. Wireless Connectivity: Transmits TV audio to a home speaker system via Bluetooth, eliminating the need for wired connections. 3. Enjoy Music Privately: Stream TV sound to a Bluetooth headset, allowing you to experience high-quality audio without disturbing others. 4. Wide Compatibility: Suitable for use at home, in classrooms, or during presentations. 5. High Performance: Clear voice transmission to a Bluetooth speaker; ensures speech is audible without being too quiet. Specification: Interface: USB Wireless Type: Bluetooth WIFI Standard: None Content: AUDIO High Definition Support: None Model Number: Audio transmitter Supports paired Bluetooth stereo headset/headphone with play/pause, forward/backward controls Supports automatic pairing (no button press required) Pairing PIN code: 1234 Frequency range: 2.42 to 2.480 GHz Working current: 40mA maximum Compatible with 30PIN devices Operating range: 10 meters Material: Plastic Color: Black Package Contents: 1 x Bluetooth Audio Transmitter Note: Light reflection and differences in display screens may cause slight variations in color between the product image and the actual item. Measurement may vary by +/- 1-3 cm.