Usage Tips:Features: Support U-Disk play.Plugs and play, super easy.Bluetooth-compatible receiver is featuring bluetooth-compatible5.0 chip which is a good solution delivering high quality wireless-audio performance;This Bluetooth-compatible audio-adapter can achieve a range of 15meters indoors(without obstacles).Interface type: AUX, Rca- U-disk;Specifications: Material:ABSColor:BlackPower supply: DC5VBluetooth-compatible version:5.0Interface type: AUX, Rca- U-diskTransmission distance: barrier-free 15metersRemote control support: infrare remote controlPackage Includes: 1xWireless Receivernote: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.