Use 2.4G technology for high-definition sound quality with low-latency transmission External antenna for improved transmission performance Automatically connects when powered on Supports 3.5mm audio input Supports 3.5mm audio output This product is a wireless audio transmitter that uses 2.4G technology to deliver high-definition sound with minimal 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. This solution helps eliminate the need for repeated switching or setting of audio output formats and reduces cable clutter. It is suitable for use in home entertainment, educational facilities, public squares, gaming, and other applications Receiver can drive headphones directly Supports two-way volume control Powered via USB Type-C interface 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 Only the above items are included; other accessories are not included Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3cm