Important Note: aptX Low Latency cannot be achieved in dual link.
If your Bluetooth headphone/speaker (e.g. Bose, Beats, Sony headphones) does not support aptX Low Latency, it will work with Avantree transmitter using aptX or SBC (Standard Bluetooth Codec) with about 70 -220ms latency, it is good for music but you may notice the lag between sound and picture while watching TV/movies.
If your Bluetooth headphone/speaker(e.g. Avantree Audition Pro) support aptX Low Latency, it will work with Avantree transmitter using aptX Low Latency with only 40ms latency which is not noticeable by human ears and ideal for enjoying TV/movies.
For CERTIFIED aptX Low Latency products, you can visit http://www.aptx.com/aptx-low-latency