Description: 【Audio Receiver and Transmitter】Audio Adapter with rich interfaces like 3.5mm AUX , RCA right and left, optical fiber , support reading U disk playback, plug and play, no driver required, versatile design to meet the needs of different devices 【Upgrade Wireless 5.3 】 Equipped with high performance Wireless 5.3 chip, low loss data transmission, fast response, stronger anti interference,say goodbye to delays and other issues.Strong signal, 10 meters barrier free transmission, built in signal gain amplifier, no dead angle in room connection. 【HiFi Sound 】CD level high definition lossless playback sound, no delay in listening to songs, HiFi decoding output, no lag, clear sound quality, restore sound details, just like a music scene 【Multiple Linking Methods】With Wireless Transmitter Receiver, phones and laptop are easily connected and old styled speakers and power amplifiers have Wireless function in seconds, solve the problem that the speaker power cannot use Wireless Wireless to play. 【Size】9cmx7.7cmx3cm/3.54inchx3.03inchx1.18inch,the compact design of this transmitter and receiver saves you space, easy to carry Specification: Wireless solution: 5.3 EDR A2DP HSP AVRCP Frequency: 2.4GHz-2.48GHz Power supply voltage: DC 5V (without built in battery) Wireless receiving function: connect 1 mobile phone U disk playback: support reading U disk playback Size Chart: 9cmx7.7cmx3cm/3.54inchx3.03inchx1.18inch Package Includes: 1 Wireless Audio Transmitter Receiver Adapter 1 3.5mm Audio Cable 1 Optical Audio Cable 1 RCA Audio Cable 1 Power Cord   Note: Please allow slightly errors due to manual measurement and different monitors.