Description: 【HiFi Stereo Sound】: Audio Receiver with intelligent noise reduction, Hifi sound quality. Support infrared remote control, the maximum infrared remote control distance is 10 meters 【U Disk Playback】: Audio Adapter plug and play, lossless sound quality, can directly play various formats of music files in U disk, supports formats NAV WMA APE etc. 【Stable Signal】: Music Audio Adapter, 30m long distance signal, external antenna, strong signal, wide coverage, long distance transmission without lag and delay. 【Multiple Interfaces】: Audio Adapter Interfaces including Wireless U disk AUX audio R L red and white lotus DAC coaxial MIC microphone, meet variety of needs 【Support Wired Microphone and Cordless Microphone】: Audio Receiver Built in cordless microphone chip, anti howling, more convenient for family karaoke, and the sound quality is more beautiful. Specification: Material: aluminum alloy Size Chart: 11.5cmx7.7cmx2.5cm/4.53inchx3.03inchx0.98inch  Package Includes: 1 Wireless Audio Receiver Adapter 1 Power Supply Line 1 Audio Cable 1 RCA Cable 1 Coaxial Line 1 Remote Control 1 English Manual Note: Please allow slightly errors due to manual measurement and different monitors.