Features: Use 2.4GHz WIFI frequency band-.Ultra-low latency less than 0.25ms and high-fidelity transmission 48Khz 32bit Unobstructed transmission distance up to 100meters. With 2 high-gain antennas，support through-the-wall transmission. Effectively blocks- wireless signal interference such as intercom and wireless routing. The transmitte-supports 1 channel RCA-audio input, and the receiver supports 1 channel RCA audio output. The transmitter- and receiver can be used one-to-one or one transmitter for multiple receivers at the same-time. Aluminum alloy-shell, great heat dissipation effect, effectively guarantee- the working-time and life of the equipment. Plug-play,no software installation, no setup- required, simple installation. Specifications: Item:WIFI Wireless Audio Transmitter Receiver Product model:WR380 WIFI frequency band：2.4Ghz Wireless Transmission distance： up to 100meters Support: 3.5-Aux and RCA AV Sender Product size approx 10x8.x 2.1cm/3.94x3.35x0.83in Material:Aluminum-Alloy Plug-Type:UK/EU/AU/US Weight:500g Color:As Pictures Package Includes: 1PC Receiver 1PC Transmitter 2PCS Power Adapter 2PCS 3.5mm to Right and Left power Cable 2PCS Lotus audio-Cable note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you do not mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks.