Feature: 1. 2 IN 1 DESIGN: Bluetooth AUX adapter receiver and transmitter 2 in 1, long press the left and right function button to switch the mode. 2. 3.5MM SOUND INTERFACE: It can be used for almost all digital products with sound output (3.5mm sound jack), just link the sound to the input port. 3. STABLE TRANSMISSION: Bluetooth transmitter and receiver transmitting range up to 10m/32.8ft, stable transmission without lag. 4. NOISE CANCELLING: Wireless 3.5mm sound adapter has built in AEC noise cancellation and ANC noise cancellation circuits to restore pure sound quality. 5. LCD DISPLAY: Bluetooth 5.0 transmitter receiver with LCD display is easy and intuitive to use and suitable for a wide range of devices. Specification: Item Type: Bluetooth 5.0 Transmitter Receiver Material: Wire Use: Bluetooth Adapter Size: As Shown In The Picture (Sound Cable Length: Approx. 30cm/11.8in) Input Voltage: DC5V Input Interface: 3.5mm Sound Transmission Distance: Approx. 10m/32.8ft Bluetooth Version: Bluetooth 5.0 Interface: USB Transmission Rate: 100 (Mbps) Operating Frequency: 2.4 (MHz) Power Supply: USB Power Supply (Product Not Included) Suitable Type: Computer, TV, Projector (Transmitting Mode), Speaker, Headset (Receiving Mode). Package List: 1 x Bluetooth 5.0 Transmitter Receiver 1 x 3.5mm Sound Cable Note: Please allow some error due to manual measurement.