Use 2.4G technology for high-definition sound quality with no transmission delay External antenna for improved transmission performance Automatically connects when powered on Supports 3.5mm port input Supports 3.5mm port output This product is a wireless audio transmitter that uses 2.4G technology to deliver high-definition sound quality with no transmission delay. The transmitter can send 2.0 analog stereo audio signals from a 3.5mm audio interface to the receiver up to 50 meters away for listening. This product helps eliminate the need for repeatedly switching or setting the audio output format of the source device and reduces cable clutter. It is widely used in home entertainment, schools, public squares, electronic gaming, and other applications Receiver can drive headphones Supports two-way volume control Wide compatibility with power interface; powered via Type-C Maximum transmission distance: 50M RX power consumption: 5V/45mA TX power consumption: 5V/150mA RF frequency: 2400MHz Transmit power: 14dB Signal-to-noise ratio: 67dB Frequency range: 20Hz - 14.5kHz Maximum output level: 1.75Vp-p Color: Black Material: ABS Package Contents: 1 x Audio Receiver 1 x Audio Transmitter 2 x USB Cable Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3cm.