Digital Audio Interface The transmitter accepts a digital audio signal at both the electrical and optical digital interface. By using one of the digital interfaces, audio data can be fed directly into the transmitter. This bypasses the digital-to-analog and analog-todigital conversion and thereby eliminates audio distortion. Many HiFi components provide a digital audio interface. The format of the digital audio which is fed into the transmitter must be uncompressed S/PDIF stereo data at a sampli

operating range of 100 feet • Multiple headphones can operate simultaneously • Ergonomic headphone for maximum comfort Technology Comparison to Bluetooth: Amphony Bluetooth Transmit frequency 5.8 GHz 2.4 GHz Transmitted audio data rate > 3 Mbps 100 kbps ... 300 Audio compression Uncompressed Bluetooth Audio Maximum operating range 100 ft. 30 ft. Battery life 100 hours < 10 hours Multiple headphones can operate from initial transmitter \/ X Audio delay (latency) < 1 ms > 10 ms

Most audio devices provide a line-out interface. If no line-out interface is available, the transmitter can also be connected to other audio outputs by using an appropriate adapter. It should be noted that the audio level of the audio output should conform to the standard line output level (V pp ± 2.8 V maximum). If the audio level is too low, the dynamic range of the transmitter is not fully used. If the audio level is too high, clipping at high audio levels may occur. If clipping occurs, eithe