Specifications:The wireless audio transmitters and receivers is ideal wireless audio solutions for all situations and purposes.Wireless transmits audio from a non-Bluetooth TV, home stereo system or CD player to a bluetooth-compatible headset or speaker.You just need press the switch to switch between transmitter and receiver mode.Wireless transmits audio from a Bluetooth-enabled phone, tablet, or computer to a wired stereo, speaker, or headset.It can be connected using advanced bluetooth-compatible technology and 3.5mm audio cable.It has powerful wireless audio streaming capabilities.You can place the transmitter and receiver in a backpack or laptop bag and carry it effortlessly.It equipped with 3.5mm cable and 3.5mm to 2RCA cable, and this receiver transmitter adapter can be widely used for your computer, laptop, home stereo system, headset, smartphone, Mp3 player, CD player device, etc.Item Name: Audio Receiver TransmitterMaterial: ABSBluetooth: 5.0Functions: bluetooth-compatible Audio Receiving and TransmittingTransmission Signal Distance: 10mInput Interface: 3.5mmInput Voltage: DC/5VFeatures: Simple Operation, Wide compatibility, Automatic Matching, Noise-reducing,Plug And PlayReceiver Size: 3.2cm x 1.7cm x 0.85cm/1.26" x 0.67" x 0.33" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Receiver Adapter1 x 3.5mm Auxiliary Cable1 x RCA Cable1 x User Manual