Wired Device to Bluetooth-compatible Black Vintage Speakers Audio Aux Receiver for Office Specifications: This wireless audio receiver adopts Bluetooth-compatible 5.1 chip, which supports stable transmission, stereo and lossless sound effect.Wide application in many devices of the intelligent audio receiver adapter makes it practical and multifunctional.It is constructed of ABS material.The length of the audio receiver adapter is 7cm, the width is 7cm and the height is 3.45cm.This audio receiver adapter is suitable for car, laptop, smartphone, TV set, speaker and so on.Item Name: Audio ReceiverFeatures: Plug Play, Driver-free, Quick TransmissionTransmission Rate: 100 (Mbps)Operating Frequency: 2400 (MHz)Bluetooth-compatible: Standard 5.1Transmission Distance: 10 MetersPower Supply: DC5V/1AFunction: Optical Fiber Playback, AUX Playback, TF Card Playback, Coaxial PlaybackSize Details: Size: 7cm x 7cm x 3.45cm/2.76" x 2.76" x 1.36" (Approx.)Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.Package Includes: 1 x Audio Receiver 1 x User Manual